Dear All,

I appreciate the help you provide to solve our problems.

I need help to solve these questions: -

Q1. For the real valued function given below

$\displaystyle f(x) = (-x + 9)^3 $

Find

$\displaystyle f^{-1} (-1) $

Q2. The real valued functions are given below

$\displaystyle f(x) = 3x^4 - 2x^2 $

&

$\displaystyle g(x)=\frac{2}{\sqrt{x}} $, $\displaystyle x \ne 0 $

Find gof(x) and gog(x)

Thanks in Advance.