JEE MATHEMATICS MCQ: FUNCTIONS

1 Easy

1 of 1

Application +4 | -1

f\left( x \right) = {\left( {a - {x^n}} \right)^{1/n}},

where

a > 0

and

n \in N,

then

fof\left( x \right)

is equal to

View answer and explanation

Correct option: B

x

Option B (

x

) is correct because after applying the function

f

twice, the expression simplifies back to

x

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