Question

If f(x)=x² + 1 then value of (fof)(x) is equal to
A)x⁴+ 2x²+2
B)x⁴+ 2x²-2
C)x⁴ + x +1
D) none of these

Answer 1

Answer:

he...mate..

Step-by-step explanation:

your answer will be option number (A).

I hopes its helps u.

Answer 2

For given expression answer is x⁴ + 2x² + 2. i.e. correct option is A.

fof(x) can be find out by (f(x))² + 1.

Given : f(x) = x² + 1

To Find : fof(x)

Solution :

fof(x) means f(f(x))

replace x by f(x)

f(f(x)) = (f(x))² + 1

        = (x² + 1 )² + 1

        = x⁴ + 2x² + 1 + 1

        = x⁴ + 2x² + 2

Hence, fof(x) is x⁴ + 2x² + 2. Option (A) is correct.

Learn more about (fof)(x)-

https://brainly.in/question/32547304?msp_srt_exp=4

https://brainly.in/question/1323952?msp_srt_exp=4

#SPJ3