If f(x)= [a-x^ n ]^ 1 / n , where a>0 and n is a positive integer, then f^ f [f( x )] is…
Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions
If \(f(x)=\left[a-x^{n}\right]^{1 / n}\), where \(a>0\) and \(\text { n }\) is a positive integer, then \(f^{f}[f(\mathbf{x})]\) is equal to:
- \(x^{3}\)
- \(x^{2}\)
- \(\mathbf{x}\)
- None of these
Answer
(C) x
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