Question

For f(x) = 4x+1 and g(x) =x^2-5 find (f times g) (4)

apex

Answer 1

`(f o g)(4) =  45`

Explanation:

Step 1:-

Given f(x) = 4 x+1 and g(x) =x^2-5

`(f o g )(x) = f(g(x))`

Given

`(f 0 g)(4)=f(g(4))`

`f(g(4))=f(4^(2)-5)=f(11)`

`f(11)=4(11)+1 = 45`

Therefore
`(f o g)(4) =  45`