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Update index.html
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index.html

Lines changed: 30 additions & 32 deletions
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@@ -1262,6 +1262,36 @@ <h5 style="font-size:160%;margin:7px">Trigonometry</h5>
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</div>
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<br>
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<br>
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<math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML" > <mrow>
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<mi>S</mi>
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<mo>=</mo>
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<mi>Semi perimeter</mi>
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<mo>=</mo>
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<mfrac>
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<mrow>
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<mo>(</mo>
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<msub>
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<mi>side</mi>
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<mn>1</mn>
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</msub>
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<mo>+</mo>
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<msub>
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<mi>side</mi>
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<mn>2</mn>
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</msub>
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<mo>+</mo>
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<msub>
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<mi>side</mi>
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<mn>3</mn>
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</msub>
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<mo>)</mo>
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</mrow>
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<mn>2</mn>
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</mfrac>
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</mrow>
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</math>
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<br>
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<br>
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<math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML">
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<mrow>
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<mi>A</mi>
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</msqrt>
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</mrow>
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</math>
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<br>
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<br>
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<math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML" > <mrow>
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<mi>S</mi>
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<mo>=</mo>
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<mi>Semi perimeter</mi>
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<mo>=</mo>
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<mfrac>
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<mrow>
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<mo>(</mo>
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<msub>
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<mi>side</mi>
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<mn>1</mn>
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</msub>
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<mo>+</mo>
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<mi>side</mi>
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<mn>2</mn>
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</msub>
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<mo>+</mo>
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<msub>
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<mi>side</mi>
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<mn>3</mn>
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<mo>)</mo>
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</mrow>
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<mn>2</mn>
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</mfrac>
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</mrow>
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</math>
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</div>
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</div>
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<br>

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