ddx (xsin(x))=sin(x)+xcos(x)
 
« hide steps
ddx (xsin(x))=sin(x)+xcos(x)
  • steps
  • ddx (xsin(x))

  • Apply the Product Rule:    (f·g)=f ·g+f·g
    f=x, g=sin(x)
    =dxdx sin(x)+ddx (sin(x))x

  • show steps
    dxdx =1
    show steps
    ddx (sin(x))=cos(x)
    =1·sin(x)+cos(x)x

  • Simplify
    =sin(x)+xcos(x)

Number Line