1)
y'=(xsinx+cosx)'=(xsinx)'+cosx'=sinx+xcosx-sinx=xcosx;
2)
y=(sin2x)^3
y'=3(sin2x)^2*cos2x*2=6(sin2x)^2*cos2x=3sin(4x)sin(2x)
教えてください
1)
y'=(xsinx+cosx)'=(xsinx)'+cosx'=sinx+xcosx-sinx=xcosx;
2)
y=(sin2x)^3
y'=3(sin2x)^2*cos2x*2=6(sin2x)^2*cos2x=3sin(4x)sin(2x)
Users viewing this question
are also looking at these questions 😉