Application Of Derivatives

Let \(f(x)=x^5+2 x^3+3 x+1, x \in \mathbf{R}\), and \(g(x)\) be a function such that \(g(f(x))=x\) for all \(x \in \mathbf{R}\). Then \(\frac{g(7)}{g^{\prime}(7)}\) is equal to :