1.y=x*e^(2x) 2.y=(sin(2x))/x 3.y=sin(3x+(π/3))怎么求导数!

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1.y=x*e^(2x)2.y=(sin(2x))/x3.y=sin(3x+(π/3))怎么求导数!1.y=x*e^(2x)2.y=(sin(2x))/x3.y=sin(3x+(π/3))怎么求导数!

1.y=x*e^(2x) 2.y=(sin(2x))/x 3.y=sin(3x+(π/3))怎么求导数!
1.y=x*e^(2x) 2.y=(sin(2x))/x 3.y=sin(3x+(π/3))怎么求导数!

1.y=x*e^(2x) 2.y=(sin(2x))/x 3.y=sin(3x+(π/3))怎么求导数!
1. y'=e^(2x)+2xe^(2x)= (1+2x)e^(2x)

2. y'=[2xcos2x-sin2x]/x^2

3. y'=3cos(3x+π/3)

1:2*e^2x+2*e^2x 2:(-2xcosxsinx-2sinxcosx)/x^2 1.5cos3x-(3*3^1/2)/2sin3x