Ok, here's the problem.
Let f and g and their inverses f^(-1) and g^(-1) have the following values at x=1, x=2.
At x=1,
f(x)=3
g(x)=2
f'(x)=5
g'(x)=4
At x=2,
f(x)=2
g(x)=pi
f'(x)=6
g'(x)=7
Ok. The questions are to find the derivative of f+g at x=2, f times g at x=2, and so...