像y=sin{In(3+2x²)²}这种复合函数怎么求导,最好用wps作具体过程~谢谢~
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发布时间:2022-06-05 01:45
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时间:2023-11-04 10:13
就是重复应用复合函数的求导公式:f(g(x))'=f'(x)g'(x)
y‘=sin{In(3+2x²)²}'
=cos(In(3+2x²)²) *{In(3+2x²)²}'
=cos(In(3+2x²)²) *1/(3+2x²)² *{ (3+2x²)² }'
=cos(In(3+2x²)²) *1/(3+2x²)² * 2(3+2x²)*(3+2x²) '
=cos(In(3+2x²)²) *1/(3+2x²)² * 2(3+2x²)*4x
=cos(In(3+2x²)²) *8x/(3+2x²)