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求函数y=e^xsin2x的微分
求函数y=e^xsin2x的微分
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2020-05-20 12:40
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求这个函数的导数要用到函数乘积的求导法则和复合函数的求导法则.
y=e^xsin2x
y'=(e^x)'sin2x+e^x(sin2x)'
=e^xsin2x+e^xcos2x*(2x)'
=e^xsin2x+e^xcos2x*2
=e^x(sin2x+2cos2x).
2020-05-20 12:42:09
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