Mathematics

Problem

The function

h

is defined by

h(x)= \begin{cases} (x+2)^2, & x<-1,\\ |x+1|, & -1\le x\le 3,\\ \sqrt{x-3}, & x>3. \end{cases}

Determine all

x

–values in the domain of

h

at which

h

is not differentiable.