1. The problem statement, all variables and given/known data Let h(t) = tan(3t+7) Find h'(t) and h''(t) I found h'(t) which is equal to 3(sec(3t+7))^2 But I can't seem to find h''(t) How do I find the derivative of this? Could someone please teach me? Is it a composition function? If it is, I think I see 4 functions. Thanks in advance.