1. The problem statement, all variables and given/known data Compute the derivatives of the following (where they are differentiable): h) |sinx| 2. Relevant equations Chain rule: (f°g)'(c) = f'(g(c))(g'(c)) 3. The attempt at a solution Let f=|x| and g=sin x (f°g)'(c) = f'(g(x))g'(c) = f'(sin x)(cos x) But I don't know what (|x|)' is. It's +1 when x>0 and -1 when x<0 and it's not differentiable at 0, but then there is no x to plug g into, and looking at the graph, I don't think this would be right. Thanks!