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数学
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求∫e^x/e^x+2dx的不定积分
人气:297 ℃ 时间:2020-02-04 23:31:27
解答
∫e^x/e^x+2dx
=∫1/(e^x+2)d(e^x+2)
=ln|e^x+2|+C
=ln(e^x+2)+C
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