[積分] 一題不定積分
題目如下
∫3/[1-e^(3x)]dx
試過代換法, 還是求不出來
(我是上下先 *e^3x, 然後把e^3x 代換成 u, du = 3e^3x)
就麻煩有心人士幫忙了, 謝謝 ^^
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01/21 22:20, , 1F
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01/22 00:22, , 2F
01/22 00:22, 2F
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01/22 00:22, , 3F
01/22 00:22, 3F
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01/22 00:23, , 4F
01/22 00:23, 4F
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01/23 16:57, , 5F
01/23 16:57, 5F
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