Question

this is a propf and I need both sides to equal each other. Thanks this one stumped me.

sin^3x/(1-cosx) = sinxcosx+sinx

Answer 1

RS = sinx(cosx + 1)

LS = sin^2x(sinx)/(1-cosx)
= ((1-cos^2x)sinx/(1-cos)
= (1-cosx)(1+cosx)sinx/(1-cosx)
= (1+cosx)sinx
= RS