Question

find (f^-1)'(a)

f(x)=sqrt(x^3+x^2+x+1) a=2

Answer 1

the inverse of sqrt(x^3+y^2+x+1)

Answer 2

i believe you're t(rying to find derivative of that equation then *2?
so (x^3 + x^2 + 1)^1/2
1/2(x^3+x^2+1)^-1/2 * (3x+2x) via chain rule
rest just simply and afterwards multiple by a=2 to complete answer