计算∫01arctanxdx.

admin2022-06-22  17

问题 计算∫01arctanxdx.

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答案01arctanxdx=xarctanx|01-∫01x/(1+x2)dx =π/4-(1/2)∫01d(1+x2)/(1+x2)=π/4-ln(1+x2)/2|01=π/4-ln2/2.

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