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62 lines
1.0 KiB
Plaintext
62 lines
1.0 KiB
Plaintext
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
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<mrow>
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<mi>E</mi>
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<mfenced>
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<mrow>
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<mi>k</mi>
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</mrow>
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</mfenced>
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<mo>=</mo>
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<mi>E</mi>
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<mfenced>
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<mrow>
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<mrow>
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<mfrac>
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<mi>π</mi>
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<mn>2</mn>
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</mfrac>
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</mrow>
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<mo>,</mo>
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<mi>k</mi>
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</mrow>
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</mfenced>
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<mo>=</mo>
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<msubsup>
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<mo>∫</mo>
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<mrow>
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<mn>0</mn>
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</mrow>
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<mrow>
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<mfrac>
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<mi>π</mi>
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<mn>2</mn>
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</mfrac>
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</mrow>
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</msubsup>
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<msqrt>
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<mrow>
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<mn>1</mn>
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<mo>−</mo>
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<msup>
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<mi>k</mi>
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<mn>2</mn>
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</msup>
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<mrow>
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<mi>sin</mi>
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<msup>
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<mi/>
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<mn>2</mn>
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</msup>
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<mi>θ</mi>
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</mrow>
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</mrow>
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</msqrt>
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<mrow>
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<mi>d</mi>
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<mi>θ</mi>
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</mrow>
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</mrow>
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</math>
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