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

User Sterling Christensen
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2 Answers

4 votes

Answer:

answer is b

Explanation:


Given f(x)=x^3 and g(x)=1-5x^2, find (fog) (x) and its domain-example-1
User Pulsehead
by
6.5k points
4 votes
(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


User Lennaert
by
6.8k points
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