JEE MATHEMATICS MCQ: FUNCTIONS

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Analyzing +4 | -1

Which of the following functions is inverse of itself?

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Correct option: A

f\left( x \right) = \frac{{1 - x}}{{1 + x}}

Option A (

f(x) = \frac{{1 - x}}{{1 + x}}

) is correct because applying the function to itself results in the original input x, meaning it's its own inverse.

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