Question

If f(x) = x and g(x) = 2, what is (fog)(x)?

O (fog)(x) = 2x
O (fog)(x) = 2
O (fog)(x)=x+2
X
○ (fog)(x) = //

Answer 1

`(fog)^( \prime)(x) = 0`

Explanation:

`(fog) ^( \prime) (x) = g^( \prime)(x) * f^( \prime)(g(x))`

`g^( \prime)(x) = 0`

`f^( \prime)(x) = 1`

`f^( \prime)(g(x)) = 1`

`(fog)^( \prime) (x) = 1 * 0`

`(fog)^( \prime)(x) = 0`