Let f : R→R be defined by f(x)= 3x2-5 and g : R→R by g(x)=(\... | Mathematics | SolveeIt

Let f : R→R be defined by f(x)= 3x2-5 and g : R→R by g(x)= $\frac{x}{x^2+1}$ then gof is

$\frac{3x^2}{x^4+2x^2-4}$

$\frac{3x^2-5}{9x^4-30x^2-26}$

$\frac{3x^2}{9x^4+30x^2-2}$

$\frac{3x^2-5}{9x^4-6x^2+26}$

Answer

$\frac{3x^2-5}{9x^4-30x^2-26}$

Explanation

The correct answer is (B) : $\frac{3x^2-5}{9x^4-30x^2-26}$ .

Mathematics Question on composite of functions