Question

what is the answer of this question​

Answer 1

Answer:

$f(x) = \frac{5}{x^{2} - 3}$

$g(x) = \sqrt{x + 3}$

So,

$fog \: (x) = \frac{5}{ {(g(x))}^{2} - 3 }$

or

$fog(x) = \frac{5}{x + 3 - 3}$

or

$fog(x) = \frac{5}{x}$

which is the answer !