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∫xe的x次方dx的积分
人气:477 ℃ 时间:2019-09-29 01:54:20
解答
∫xe的x次方dx的积分
=∫xde^x
=xe^x-∫e^xdx
=xe^x-e^x+c^是个什么意思啊e^x即为e的x次方
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