If f x = 3 x - 2 and g x = x 2 , then f o g x = ________, 3 x 2 - 2, 3 x 2 + 2, 3 x - 2, 2 - 3 x 2

If f x = 3 x - 2 and g x = x 2 , then f o g x = _______

Question: Answered & Verified by Expert

f (x) = 3 x - 2

and

g (x) = x^{2},

then

f o g (x) =

________

MathematicsFunctionsMHT CETMHT CET 2019 (02 May Shift 1)

Options:

Solution:

1375 Upvotes Verified Answer

The correct answer is:

3 x^{2} - 2

Given:

f (x) = 3 x - 2 g (x) = x^{2}

N o w, f o g (x) = f (g (x)) = f (x^{2})

= 3 x^{2} - 2

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