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y=e^x(cos2x+sinx) 求dy/dx
y=e^x(cos2x+sinx) 求dy/dx
人气:221 ℃ 时间:2020-04-14 11:10:54
解答
dy/dx=y'=e^x(cos2x+sinx) +e^x(cos2x+sinx) '
=e^x(cos2x+sinx-2sin2x+cosx)
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