Question

and the question class 10​

Answer 1

Answer:

hope it helps

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Step-by-step explanation:

Question 6.

Let f(x) = x² – 1.

Find (i) fof (ii) fofof

Answer:

f(x) = x² – 1

(i) fof = f[f{x)]

= f(x² – 1) =

= (x2 – 1)2 – 1 =

= x⁴ – 2x2 + 1- 1 =

= x⁴ – 2x2 =

(ii) fofof = fof[f(x)]

= fof (x² - 1) =

= f(x² – 1)² – 1

= f(x⁴ – 2x2 + 1 - 1) =

= f (x⁴ – 2x2) -

fofof = (x⁴ – 2x2)² – 1 =