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y=cos^2(sin2x)的导数,
人气:230 ℃ 时间:2020-03-30 00:36:34
解答
y' =2cos(sin2x) ×[cos(sin2x)]'
=2cos(sin2x)×[-sin(sin2x)]× (sin2x)'
=-sin(2sin2x)×2cos2x
=-2cos2x sin(2sin2x)
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