We know that According to Algebra of Real Functions :
If f and g are two real functions which are defined under the same domain then (f . g)(x) = f(x) . g(x)
[tex]Given\;f(x) = \frac{\sqrt{x + 3}}{x}\;and\;g(x) = \frac{\sqrt{x + 3}}{2x}[/tex]
⇒ (f . g)(x) = f(x) . g(x)
⇒ [tex](f . g)(x) = \frac{\sqrt{x + 3}}{x}\times\frac{\sqrt{x + 3}}{2x}[/tex]
⇒ [tex](f . g)(x) = \frac{x + 3}{2x^2}[/tex]
