Question

Given f(x)=x^3 and g(x)=1-5x^2, find (fog) (x) and its domain

Answer 1

answer is b

Explanation:

Answer 2

(fog)(x) = f(g(x))

Given f(x) = x³ and g(x) = 1-5x²

Then
f(g(x)) = f(1 - 5x²) = (1 - 5x²)³

The domain of f(g(x)) is any real numbers; x ∈ R