Question

If f(x) = 3x - 2 and g(x) = x², then (fog)(x) = ________.

विकल्प

• 3x² - 2

• 3x² + 2

• 3x - 2

• 2 - 3x²

Answer 1

If f(x) = 3x - 2 and g(x) = x 2 , then (fog)(x) = 3x² - 2.

Explanation:

We have, f(x) = 3x - 2, g(x) = x²

Then (fog) (x) = f(g(x)) = f(x²)

= 3x² - 2