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0;position:relative}#facebook ._3_3l .katex .overline .overline-line,._3_3l .katex .overline .overline-line,#facebook ._3_3l .katex .underline .underline-line,._3_3l .katex .underline .underline-line{display:inline-block;width:100%;border-bottom-style:solid}#facebook ._3_3l .katex .sqrt>.sqrt-sign,._3_3l .katex .sqrt>.sqrt-sign{position:relative}#facebook ._3_3l .katex .sqrt .sqrt-line,._3_3l .katex .sqrt .sqrt-line{display:inline-block;position:relative;width:100%;border-bottom-style:solid}#facebook ._3_3l .katex .sqrt>.root,._3_3l .katex .sqrt>.root{margin-left:.27777778em;margin-right:-0.55555556em}#facebook ._3_3l .katex .sizing,._3_3l .katex .sizing,#facebook ._3_3l .katex .fontsize-ensurer,._3_3l .katex .fontsize-ensurer{display:inline-block}#facebook ._3_3l .katex .sizing.reset-size1.size1,._3_3l .katex .sizing.reset-size1.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size1,._3_3l .katex .fontsize-ensurer.reset-size1.size1{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size1.size2,._3_3l .katex .sizing.reset-size1.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size2,._3_3l .katex .fontsize-ensurer.reset-size1.size2{font-size:1.2em}#facebook ._3_3l .katex .sizing.reset-size1.size3,._3_3l .katex .sizing.reset-size1.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size3,._3_3l .katex .fontsize-ensurer.reset-size1.size3{font-size:1.4em}#facebook ._3_3l .katex .sizing.reset-size1.size4,._3_3l .katex .sizing.reset-size1.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size4,._3_3l .katex .fontsize-ensurer.reset-size1.size4{font-size:1.6em}#facebook ._3_3l .katex .sizing.reset-size1.size5,._3_3l .katex .sizing.reset-size1.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size5,._3_3l .katex .fontsize-ensurer.reset-size1.size5{font-size:1.8em}#facebook ._3_3l .katex .sizing.reset-size1.size6,._3_3l .katex .sizing.reset-size1.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size6,._3_3l .katex .fontsize-ensurer.reset-size1.size6{font-size:2em}#facebook ._3_3l .katex .sizing.reset-size1.size7,._3_3l .katex .sizing.reset-size1.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size7,._3_3l .katex .fontsize-ensurer.reset-size1.size7{font-size:2.4em}#facebook ._3_3l .katex .sizing.reset-size1.size8,._3_3l .katex .sizing.reset-size1.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size8,._3_3l .katex .fontsize-ensurer.reset-size1.size8{font-size:2.88em}#facebook ._3_3l .katex .sizing.reset-size1.size9,._3_3l .katex .sizing.reset-size1.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size9,._3_3l .katex .fontsize-ensurer.reset-size1.size9{font-size:3.456em}#facebook ._3_3l .katex .sizing.reset-size1.size10,._3_3l .katex .sizing.reset-size1.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size10,._3_3l .katex .fontsize-ensurer.reset-size1.size10{font-size:4.148em}#facebook ._3_3l .katex .sizing.reset-size1.size11,._3_3l .katex .sizing.reset-size1.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size1.size11,._3_3l .katex .fontsize-ensurer.reset-size1.size11{font-size:4.976em}#facebook ._3_3l .katex .sizing.reset-size2.size1,._3_3l .katex .sizing.reset-size2.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size1,._3_3l .katex .fontsize-ensurer.reset-size2.size1{font-size:.83333333em}#facebook ._3_3l .katex .sizing.reset-size2.size2,._3_3l .katex .sizing.reset-size2.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size2,._3_3l .katex .fontsize-ensurer.reset-size2.size2{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size2.size3,._3_3l .katex .sizing.reset-size2.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size3,._3_3l .katex .fontsize-ensurer.reset-size2.size3{font-size:1.16666667em}#facebook ._3_3l .katex .sizing.reset-size2.size4,._3_3l .katex .sizing.reset-size2.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size4,._3_3l .katex .fontsize-ensurer.reset-size2.size4{font-size:1.33333333em}#facebook ._3_3l .katex .sizing.reset-size2.size5,._3_3l .katex .sizing.reset-size2.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size5,._3_3l .katex .fontsize-ensurer.reset-size2.size5{font-size:1.5em}#facebook ._3_3l .katex .sizing.reset-size2.size6,._3_3l .katex .sizing.reset-size2.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size6,._3_3l .katex .fontsize-ensurer.reset-size2.size6{font-size:1.66666667em}#facebook ._3_3l .katex .sizing.reset-size2.size7,._3_3l .katex .sizing.reset-size2.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size7,._3_3l .katex .fontsize-ensurer.reset-size2.size7{font-size:2em}#facebook ._3_3l .katex .sizing.reset-size2.size8,._3_3l .katex .sizing.reset-size2.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size8,._3_3l .katex .fontsize-ensurer.reset-size2.size8{font-size:2.4em}#facebook ._3_3l .katex .sizing.reset-size2.size9,._3_3l .katex .sizing.reset-size2.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size9,._3_3l .katex .fontsize-ensurer.reset-size2.size9{font-size:2.88em}#facebook ._3_3l .katex .sizing.reset-size2.size10,._3_3l .katex .sizing.reset-size2.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size10,._3_3l .katex .fontsize-ensurer.reset-size2.size10{font-size:3.45666667em}#facebook ._3_3l .katex .sizing.reset-size2.size11,._3_3l .katex .sizing.reset-size2.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size2.size11,._3_3l .katex .fontsize-ensurer.reset-size2.size11{font-size:4.14666667em}#facebook ._3_3l .katex .sizing.reset-size3.size1,._3_3l .katex .sizing.reset-size3.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size1,._3_3l .katex .fontsize-ensurer.reset-size3.size1{font-size:.71428571em}#facebook ._3_3l .katex .sizing.reset-size3.size2,._3_3l .katex .sizing.reset-size3.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size2,._3_3l .katex .fontsize-ensurer.reset-size3.size2{font-size:.85714286em}#facebook ._3_3l .katex .sizing.reset-size3.size3,._3_3l .katex .sizing.reset-size3.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size3,._3_3l .katex .fontsize-ensurer.reset-size3.size3{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size3.size4,._3_3l .katex .sizing.reset-size3.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size4,._3_3l .katex .fontsize-ensurer.reset-size3.size4{font-size:1.14285714em}#facebook ._3_3l .katex .sizing.reset-size3.size5,._3_3l .katex .sizing.reset-size3.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size5,._3_3l .katex .fontsize-ensurer.reset-size3.size5{font-size:1.28571429em}#facebook ._3_3l .katex .sizing.reset-size3.size6,._3_3l .katex .sizing.reset-size3.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size6,._3_3l .katex .fontsize-ensurer.reset-size3.size6{font-size:1.42857143em}#facebook ._3_3l .katex .sizing.reset-size3.size7,._3_3l .katex .sizing.reset-size3.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size7,._3_3l .katex .fontsize-ensurer.reset-size3.size7{font-size:1.71428571em}#facebook ._3_3l .katex .sizing.reset-size3.size8,._3_3l .katex .sizing.reset-size3.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size8,._3_3l .katex .fontsize-ensurer.reset-size3.size8{font-size:2.05714286em}#facebook ._3_3l .katex .sizing.reset-size3.size9,._3_3l .katex .sizing.reset-size3.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size9,._3_3l .katex .fontsize-ensurer.reset-size3.size9{font-size:2.46857143em}#facebook ._3_3l .katex .sizing.reset-size3.size10,._3_3l .katex .sizing.reset-size3.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size10,._3_3l .katex .fontsize-ensurer.reset-size3.size10{font-size:2.96285714em}#facebook ._3_3l .katex .sizing.reset-size3.size11,._3_3l .katex .sizing.reset-size3.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size3.size11,._3_3l .katex .fontsize-ensurer.reset-size3.size11{font-size:3.55428571em}#facebook ._3_3l .katex .sizing.reset-size4.size1,._3_3l .katex .sizing.reset-size4.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size1,._3_3l .katex .fontsize-ensurer.reset-size4.size1{font-size:.625em}#facebook ._3_3l .katex .sizing.reset-size4.size2,._3_3l .katex .sizing.reset-size4.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size2,._3_3l .katex .fontsize-ensurer.reset-size4.size2{font-size:.75em}#facebook ._3_3l .katex .sizing.reset-size4.size3,._3_3l .katex .sizing.reset-size4.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size3,._3_3l .katex .fontsize-ensurer.reset-size4.size3{font-size:.875em}#facebook ._3_3l .katex .sizing.reset-size4.size4,._3_3l .katex .sizing.reset-size4.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size4,._3_3l .katex .fontsize-ensurer.reset-size4.size4{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size4.size5,._3_3l .katex .sizing.reset-size4.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size5,._3_3l .katex .fontsize-ensurer.reset-size4.size5{font-size:1.125em}#facebook ._3_3l .katex .sizing.reset-size4.size6,._3_3l .katex .sizing.reset-size4.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size6,._3_3l .katex .fontsize-ensurer.reset-size4.size6{font-size:1.25em}#facebook ._3_3l .katex .sizing.reset-size4.size7,._3_3l .katex .sizing.reset-size4.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size7,._3_3l .katex .fontsize-ensurer.reset-size4.size7{font-size:1.5em}#facebook ._3_3l .katex .sizing.reset-size4.size8,._3_3l .katex .sizing.reset-size4.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size8,._3_3l .katex .fontsize-ensurer.reset-size4.size8{font-size:1.8em}#facebook ._3_3l .katex .sizing.reset-size4.size9,._3_3l .katex .sizing.reset-size4.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size9,._3_3l .katex .fontsize-ensurer.reset-size4.size9{font-size:2.16em}#facebook ._3_3l .katex .sizing.reset-size4.size10,._3_3l .katex .sizing.reset-size4.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size10,._3_3l .katex .fontsize-ensurer.reset-size4.size10{font-size:2.5925em}#facebook ._3_3l .katex .sizing.reset-size4.size11,._3_3l .katex .sizing.reset-size4.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size4.size11,._3_3l .katex .fontsize-ensurer.reset-size4.size11{font-size:3.11em}#facebook ._3_3l .katex .sizing.reset-size5.size1,._3_3l .katex .sizing.reset-size5.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size1,._3_3l .katex .fontsize-ensurer.reset-size5.size1{font-size:.55555556em}#facebook ._3_3l .katex .sizing.reset-size5.size2,._3_3l .katex .sizing.reset-size5.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size2,._3_3l .katex .fontsize-ensurer.reset-size5.size2{font-size:.66666667em}#facebook ._3_3l .katex .sizing.reset-size5.size3,._3_3l .katex .sizing.reset-size5.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size3,._3_3l .katex .fontsize-ensurer.reset-size5.size3{font-size:.77777778em}#facebook ._3_3l .katex .sizing.reset-size5.size4,._3_3l .katex .sizing.reset-size5.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size4,._3_3l .katex .fontsize-ensurer.reset-size5.size4{font-size:.88888889em}#facebook ._3_3l .katex .sizing.reset-size5.size5,._3_3l .katex .sizing.reset-size5.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size5,._3_3l .katex .fontsize-ensurer.reset-size5.size5{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size5.size6,._3_3l .katex .sizing.reset-size5.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size6,._3_3l .katex .fontsize-ensurer.reset-size5.size6{font-size:1.11111111em}#facebook ._3_3l .katex .sizing.reset-size5.size7,._3_3l .katex .sizing.reset-size5.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size7,._3_3l .katex .fontsize-ensurer.reset-size5.size7{font-size:1.33333333em}#facebook ._3_3l .katex .sizing.reset-size5.size8,._3_3l .katex .sizing.reset-size5.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size8,._3_3l .katex .fontsize-ensurer.reset-size5.size8{font-size:1.6em}#facebook ._3_3l .katex .sizing.reset-size5.size9,._3_3l .katex .sizing.reset-size5.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size9,._3_3l .katex .fontsize-ensurer.reset-size5.size9{font-size:1.92em}#facebook ._3_3l .katex .sizing.reset-size5.size10,._3_3l .katex .sizing.reset-size5.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size10,._3_3l .katex .fontsize-ensurer.reset-size5.size10{font-size:2.30444444em}#facebook ._3_3l .katex .sizing.reset-size5.size11,._3_3l .katex .sizing.reset-size5.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size5.size11,._3_3l .katex .fontsize-ensurer.reset-size5.size11{font-size:2.76444444em}#facebook ._3_3l .katex .sizing.reset-size6.size1,._3_3l .katex .sizing.reset-size6.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size1,._3_3l .katex .fontsize-ensurer.reset-size6.size1{font-size:.5em}#facebook ._3_3l .katex .sizing.reset-size6.size2,._3_3l .katex .sizing.reset-size6.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size2,._3_3l .katex .fontsize-ensurer.reset-size6.size2{font-size:.6em}#facebook ._3_3l .katex .sizing.reset-size6.size3,._3_3l .katex .sizing.reset-size6.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size3,._3_3l .katex .fontsize-ensurer.reset-size6.size3{font-size:.7em}#facebook ._3_3l .katex .sizing.reset-size6.size4,._3_3l .katex .sizing.reset-size6.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size4,._3_3l .katex .fontsize-ensurer.reset-size6.size4{font-size:.8em}#facebook ._3_3l .katex .sizing.reset-size6.size5,._3_3l .katex .sizing.reset-size6.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size5,._3_3l .katex .fontsize-ensurer.reset-size6.size5{font-size:.9em}#facebook ._3_3l .katex .sizing.reset-size6.size6,._3_3l .katex .sizing.reset-size6.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size6,._3_3l .katex .fontsize-ensurer.reset-size6.size6{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size6.size7,._3_3l .katex .sizing.reset-size6.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size7,._3_3l .katex .fontsize-ensurer.reset-size6.size7{font-size:1.2em}#facebook ._3_3l .katex .sizing.reset-size6.size8,._3_3l .katex .sizing.reset-size6.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size8,._3_3l .katex .fontsize-ensurer.reset-size6.size8{font-size:1.44em}#facebook ._3_3l .katex .sizing.reset-size6.size9,._3_3l .katex .sizing.reset-size6.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size9,._3_3l .katex .fontsize-ensurer.reset-size6.size9{font-size:1.728em}#facebook ._3_3l .katex .sizing.reset-size6.size10,._3_3l .katex .sizing.reset-size6.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size10,._3_3l .katex .fontsize-ensurer.reset-size6.size10{font-size:2.074em}#facebook ._3_3l .katex .sizing.reset-size6.size11,._3_3l .katex .sizing.reset-size6.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size6.size11,._3_3l .katex .fontsize-ensurer.reset-size6.size11{font-size:2.488em}#facebook ._3_3l .katex .sizing.reset-size7.size1,._3_3l .katex .sizing.reset-size7.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size1,._3_3l .katex .fontsize-ensurer.reset-size7.size1{font-size:.41666667em}#facebook ._3_3l .katex .sizing.reset-size7.size2,._3_3l .katex .sizing.reset-size7.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size2,._3_3l .katex .fontsize-ensurer.reset-size7.size2{font-size:.5em}#facebook ._3_3l .katex .sizing.reset-size7.size3,._3_3l .katex .sizing.reset-size7.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size3,._3_3l .katex .fontsize-ensurer.reset-size7.size3{font-size:.58333333em}#facebook ._3_3l .katex .sizing.reset-size7.size4,._3_3l .katex .sizing.reset-size7.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size4,._3_3l .katex .fontsize-ensurer.reset-size7.size4{font-size:.66666667em}#facebook ._3_3l .katex .sizing.reset-size7.size5,._3_3l .katex .sizing.reset-size7.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size5,._3_3l .katex .fontsize-ensurer.reset-size7.size5{font-size:.75em}#facebook ._3_3l .katex .sizing.reset-size7.size6,._3_3l .katex .sizing.reset-size7.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size6,._3_3l .katex .fontsize-ensurer.reset-size7.size6{font-size:.83333333em}#facebook ._3_3l .katex .sizing.reset-size7.size7,._3_3l .katex .sizing.reset-size7.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size7,._3_3l .katex .fontsize-ensurer.reset-size7.size7{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size7.size8,._3_3l .katex .sizing.reset-size7.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size8,._3_3l .katex .fontsize-ensurer.reset-size7.size8{font-size:1.2em}#facebook ._3_3l .katex .sizing.reset-size7.size9,._3_3l .katex .sizing.reset-size7.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size9,._3_3l .katex .fontsize-ensurer.reset-size7.size9{font-size:1.44em}#facebook ._3_3l .katex .sizing.reset-size7.size10,._3_3l .katex .sizing.reset-size7.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size10,._3_3l .katex .fontsize-ensurer.reset-size7.size10{font-size:1.72833333em}#facebook ._3_3l .katex .sizing.reset-size7.size11,._3_3l .katex .sizing.reset-size7.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size7.size11,._3_3l .katex .fontsize-ensurer.reset-size7.size11{font-size:2.07333333em}#facebook ._3_3l .katex .sizing.reset-size8.size1,._3_3l .katex .sizing.reset-size8.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size1,._3_3l .katex .fontsize-ensurer.reset-size8.size1{font-size:.34722222em}#facebook ._3_3l .katex .sizing.reset-size8.size2,._3_3l .katex .sizing.reset-size8.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size2,._3_3l .katex .fontsize-ensurer.reset-size8.size2{font-size:.41666667em}#facebook ._3_3l .katex .sizing.reset-size8.size3,._3_3l .katex .sizing.reset-size8.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size3,._3_3l .katex .fontsize-ensurer.reset-size8.size3{font-size:.48611111em}#facebook ._3_3l .katex .sizing.reset-size8.size4,._3_3l .katex .sizing.reset-size8.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size4,._3_3l .katex .fontsize-ensurer.reset-size8.size4{font-size:.55555556em}#facebook ._3_3l .katex .sizing.reset-size8.size5,._3_3l .katex .sizing.reset-size8.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size5,._3_3l .katex .fontsize-ensurer.reset-size8.size5{font-size:.625em}#facebook ._3_3l .katex .sizing.reset-size8.size6,._3_3l .katex .sizing.reset-size8.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size6,._3_3l .katex .fontsize-ensurer.reset-size8.size6{font-size:.69444444em}#facebook ._3_3l .katex .sizing.reset-size8.size7,._3_3l .katex .sizing.reset-size8.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size7,._3_3l .katex .fontsize-ensurer.reset-size8.size7{font-size:.83333333em}#facebook ._3_3l .katex .sizing.reset-size8.size8,._3_3l .katex .sizing.reset-size8.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size8,._3_3l .katex .fontsize-ensurer.reset-size8.size8{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size8.size9,._3_3l .katex .sizing.reset-size8.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size9,._3_3l .katex .fontsize-ensurer.reset-size8.size9{font-size:1.2em}#facebook ._3_3l .katex .sizing.reset-size8.size10,._3_3l .katex .sizing.reset-size8.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size10,._3_3l .katex .fontsize-ensurer.reset-size8.size10{font-size:1.44027778em}#facebook ._3_3l .katex .sizing.reset-size8.size11,._3_3l .katex .sizing.reset-size8.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size8.size11,._3_3l .katex .fontsize-ensurer.reset-size8.size11{font-size:1.72777778em}#facebook ._3_3l .katex .sizing.reset-size9.size1,._3_3l .katex .sizing.reset-size9.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size1,._3_3l .katex .fontsize-ensurer.reset-size9.size1{font-size:.28935185em}#facebook ._3_3l .katex .sizing.reset-size9.size2,._3_3l .katex .sizing.reset-size9.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size2,._3_3l .katex .fontsize-ensurer.reset-size9.size2{font-size:.34722222em}#facebook ._3_3l .katex .sizing.reset-size9.size3,._3_3l .katex .sizing.reset-size9.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size3,._3_3l .katex .fontsize-ensurer.reset-size9.size3{font-size:.40509259em}#facebook ._3_3l .katex .sizing.reset-size9.size4,._3_3l .katex .sizing.reset-size9.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size4,._3_3l .katex .fontsize-ensurer.reset-size9.size4{font-size:.46296296em}#facebook ._3_3l .katex .sizing.reset-size9.size5,._3_3l .katex .sizing.reset-size9.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size5,._3_3l .katex .fontsize-ensurer.reset-size9.size5{font-size:.52083333em}#facebook ._3_3l .katex .sizing.reset-size9.size6,._3_3l .katex .sizing.reset-size9.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size6,._3_3l .katex .fontsize-ensurer.reset-size9.size6{font-size:.5787037em}#facebook ._3_3l .katex .sizing.reset-size9.size7,._3_3l .katex .sizing.reset-size9.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size7,._3_3l .katex .fontsize-ensurer.reset-size9.size7{font-size:.69444444em}#facebook ._3_3l .katex .sizing.reset-size9.size8,._3_3l .katex .sizing.reset-size9.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size8,._3_3l .katex .fontsize-ensurer.reset-size9.size8{font-size:.83333333em}#facebook ._3_3l .katex .sizing.reset-size9.size9,._3_3l .katex .sizing.reset-size9.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size9,._3_3l .katex .fontsize-ensurer.reset-size9.size9{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size9.size10,._3_3l .katex .sizing.reset-size9.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size10,._3_3l .katex .fontsize-ensurer.reset-size9.size10{font-size:1.20023148em}#facebook ._3_3l .katex .sizing.reset-size9.size11,._3_3l .katex .sizing.reset-size9.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size9.size11,._3_3l .katex .fontsize-ensurer.reset-size9.size11{font-size:1.43981481em}#facebook ._3_3l .katex .sizing.reset-size10.size1,._3_3l .katex .sizing.reset-size10.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size1,._3_3l .katex .fontsize-ensurer.reset-size10.size1{font-size:.24108004em}#facebook ._3_3l .katex .sizing.reset-size10.size2,._3_3l .katex .sizing.reset-size10.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size2,._3_3l .katex .fontsize-ensurer.reset-size10.size2{font-size:.28929605em}#facebook ._3_3l .katex .sizing.reset-size10.size3,._3_3l .katex .sizing.reset-size10.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size3,._3_3l .katex .fontsize-ensurer.reset-size10.size3{font-size:.33751205em}#facebook ._3_3l .katex .sizing.reset-size10.size4,._3_3l .katex .sizing.reset-size10.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size4,._3_3l .katex .fontsize-ensurer.reset-size10.size4{font-size:.38572806em}#facebook ._3_3l .katex .sizing.reset-size10.size5,._3_3l .katex .sizing.reset-size10.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size5,._3_3l .katex .fontsize-ensurer.reset-size10.size5{font-size:.43394407em}#facebook ._3_3l .katex .sizing.reset-size10.size6,._3_3l .katex .sizing.reset-size10.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size6,._3_3l .katex .fontsize-ensurer.reset-size10.size6{font-size:.48216008em}#facebook ._3_3l .katex .sizing.reset-size10.size7,._3_3l .katex .sizing.reset-size10.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size7,._3_3l .katex .fontsize-ensurer.reset-size10.size7{font-size:.57859209em}#facebook ._3_3l .katex .sizing.reset-size10.size8,._3_3l .katex .sizing.reset-size10.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size8,._3_3l .katex .fontsize-ensurer.reset-size10.size8{font-size:.69431051em}#facebook ._3_3l .katex .sizing.reset-size10.size9,._3_3l .katex .sizing.reset-size10.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size9,._3_3l .katex .fontsize-ensurer.reset-size10.size9{font-size:.83317261em}#facebook ._3_3l .katex .sizing.reset-size10.size10,._3_3l .katex .sizing.reset-size10.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size10,._3_3l .katex .fontsize-ensurer.reset-size10.size10{font-size:1em}#facebook ._3_3l .katex .sizing.reset-size10.size11,._3_3l .katex .sizing.reset-size10.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size10.size11,._3_3l .katex .fontsize-ensurer.reset-size10.size11{font-size:1.19961427em}#facebook ._3_3l .katex .sizing.reset-size11.size1,._3_3l .katex .sizing.reset-size11.size1,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size1,._3_3l .katex .fontsize-ensurer.reset-size11.size1{font-size:.20096463em}#facebook ._3_3l .katex .sizing.reset-size11.size2,._3_3l .katex .sizing.reset-size11.size2,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size2,._3_3l .katex .fontsize-ensurer.reset-size11.size2{font-size:.24115756em}#facebook ._3_3l .katex .sizing.reset-size11.size3,._3_3l .katex .sizing.reset-size11.size3,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size3,._3_3l .katex .fontsize-ensurer.reset-size11.size3{font-size:.28135048em}#facebook ._3_3l .katex .sizing.reset-size11.size4,._3_3l .katex .sizing.reset-size11.size4,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size4,._3_3l .katex .fontsize-ensurer.reset-size11.size4{font-size:.32154341em}#facebook ._3_3l .katex .sizing.reset-size11.size5,._3_3l .katex .sizing.reset-size11.size5,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size5,._3_3l .katex .fontsize-ensurer.reset-size11.size5{font-size:.36173633em}#facebook ._3_3l .katex .sizing.reset-size11.size6,._3_3l .katex .sizing.reset-size11.size6,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size6,._3_3l .katex .fontsize-ensurer.reset-size11.size6{font-size:.40192926em}#facebook ._3_3l .katex .sizing.reset-size11.size7,._3_3l .katex .sizing.reset-size11.size7,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size7,._3_3l .katex .fontsize-ensurer.reset-size11.size7{font-size:.48231511em}#facebook ._3_3l .katex .sizing.reset-size11.size8,._3_3l .katex .sizing.reset-size11.size8,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size8,._3_3l .katex .fontsize-ensurer.reset-size11.size8{font-size:.57877814em}#facebook ._3_3l .katex .sizing.reset-size11.size9,._3_3l .katex .sizing.reset-size11.size9,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size9,._3_3l .katex .fontsize-ensurer.reset-size11.size9{font-size:.69453376em}#facebook ._3_3l .katex .sizing.reset-size11.size10,._3_3l .katex .sizing.reset-size11.size10,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size10,._3_3l .katex .fontsize-ensurer.reset-size11.size10{font-size:.83360129em}#facebook ._3_3l .katex .sizing.reset-size11.size11,._3_3l .katex .sizing.reset-size11.size11,#facebook ._3_3l .katex .fontsize-ensurer.reset-size11.size11,._3_3l .katex .fontsize-ensurer.reset-size11.size11{font-size:1em}#facebook ._3_3l .katex .delimsizing.size1,._3_3l .katex .delimsizing.size1{font-family:KaTeX_Size1}#facebook ._3_3l .katex .delimsizing.size2,._3_3l .katex .delimsizing.size2{font-family:KaTeX_Size2}#facebook ._3_3l .katex .delimsizing.size3,._3_3l .katex .delimsizing.size3{font-family:KaTeX_Size3}#facebook ._3_3l .katex .delimsizing.size4,._3_3l .katex .delimsizing.size4{font-family:KaTeX_Size4}#facebook ._3_3l .katex .delimsizing.mult .delim-size1>span,._3_3l .katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}#facebook ._3_3l .katex .delimsizing.mult .delim-size4>span,._3_3l .katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}#facebook ._3_3l .katex .nulldelimiter,._3_3l .katex .nulldelimiter{display:inline-block;width:.12em}#facebook ._3_3l .katex .delimcenter,._3_3l .katex .delimcenter{position:relative}#facebook ._3_3l .katex .op-symbol,._3_3l .katex .op-symbol{position:relative}#facebook ._3_3l .katex .op-symbol.small-op,._3_3l .katex .op-symbol.small-op{font-family:KaTeX_Size1}#facebook ._3_3l .katex .op-symbol.large-op,._3_3l .katex .op-symbol.large-op{font-family:KaTeX_Size2}#facebook ._3_3l .katex .op-limits>.vlist-t,._3_3l .katex .op-limits>.vlist-t{text-align:center}#facebook ._3_3l .katex .accent>.vlist-t,._3_3l .katex .accent>.vlist-t{text-align:center}#facebook ._3_3l .katex .accent .accent-body>span,._3_3l .katex .accent .accent-body>span{width:0}#facebook ._3_3l .katex .accent .accent-body.accent-vec>span,._3_3l .katex .accent .accent-body.accent-vec>span{position:relative;left:.326em}#facebook ._3_3l .katex .mtable .vertical-separator,._3_3l .katex .mtable .vertical-separator{display:inline-block;margin:0 -0.025em;border-right:.05em solid black}#facebook ._3_3l .katex .mtable .arraycolsep,._3_3l .katex .mtable .arraycolsep{display:inline-block}#facebook ._3_3l .katex .mtable .col-align-c>.vlist-t,._3_3l .katex .mtable .col-align-c>.vlist-t{text-align:center}#facebook ._3_3l .katex .mtable .col-align-l>.vlist-t,._3_3l .katex .mtable .col-align-l>.vlist-t{text-align:left}#facebook ._3_3l .katex .mtable 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