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14-07-2022
Mathematics

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QUESTION 1 -

If f(x)=2x-2 and g(x)=x²+1, then f(g(-2)) =

A. -12
B. 8
C. -8
D. 4

Urgently need answer. Will give brainliest.

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14-07-2022

Answer:

B. 8

Function's:

Given following:

f(x) = 2x - 2

g(x) = x² + 1

To solve for f(g(-2)), substitute x = -2 in function g(x)

⇒ f(g(-2))

⇒ f((-2)² + 1)

⇒ f(5)

Now, substitute x = 5 in function f(x)

⇒ 2(5) - 2

⇒ 8

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