y=2xsin(2x+5)求导数!比这个多一两步y'=2sin(2x+5)+2xcos(2x+5)*2 =2sin(2x+5)+4xcos(2x+5)

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y=2xsin(2x+5)求导数!比这个多一两步y'=2sin(2x+5)+2xcos(2x+5)*2 =2sin(2x+5)+4xcos(2x+5)
y=2xsin(2x+5)求导数!
比这个多一两步
y'=2sin(2x+5)+2xcos(2x+5)*2
=2sin(2x+5)+4xcos(2x+5)

y=2xsin(2x+5)求导数!比这个多一两步y'=2sin(2x+5)+2xcos(2x+5)*2 =2sin(2x+5)+4xcos(2x+5)
由y=f*g(f,g是两个函数)的导数公式可知:
y=f'*g+f*g'
又由f(g)'=f'*g'
所以y'=(2x)'*sin(2x+5)+2x*[sin(2x+5)]'
=2sin(2x+5)+2xcos(2x+5)*2
=2sin(2x+5)+4xcos(2x+5)

y'=2(x)`sin(2x+5)+2x(sin(2x+5))`
2sin(2x+5)+2xcos(2x+5)*2
=2sin(2x+5)+4xcos(2x+5)

y'=2*(x)'*sin(2x+5)+2x*[sin(2x+5)]'
=2sin(2x+5)+2x*cos(2x+5)*(2x+5)'
=2sin(2x+5)+4xcos(2x+5)
很高兴为你解决问题!