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【高校数学】今週の積分#79【難易度★★★】
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Integral of 1/cosx
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複雑な解析: 等高線積分を使用した (1-cos(x))/x^2 の積分
INTEGRAL 07 / 51 ....... ∫ 1/cos x dx
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積分バトル#16、1/(1+cos(x))の積分、sqrt(1+cos(x))の積分
Calculus Help: Integral ∫ (1-cosx)/(x-sinx) dx - Integration by substitution - Trigonometry
How to integrate 1/cos(x)
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