Question

For the given functions f and g, find the indicated valur4×=×2+6×,g(×=×+4(g • f)(2)

Answer 1

Given:

`f(x)=\frac{12}{x+1\text{ }}\text{ and g\lparen x\rparen=}\lbrack x+7\rbrack`

Required:

`(g.f)(3)`

Step-by-step explanation:

First of all we are going to place the value of function f(x) in g(x)

(gof)(3)=g(f(x))

=gof(3)=

`\begin{gathered} \lbrack(12)/(3+1)-7\rbrack\text{ } \\ Now\text{ we are going to take lcm } \\ \lbrack(12)/(4)-7\rbrack \\ \lbrack3-7\rbrack \\ \lbrack-4\rbrack \\ 4 \end{gathered}`

Required answer:

option ii(4)