Let f (x) = x^ 2 x+1 , x -1 . The value of α for which f (a ) = a, (a ≠ 0) is

Mathematics · JEE Main · NTA Exams — Sets, Relations and Functions

1. \(1-\frac{1}{a}\)
2. \(\frac{1}{\mathrm{a}}\)
3. \(1+\frac{1}{\mathrm{a}}\)
4. \(\frac{1}{\mathrm{a}}-1\)

Answer

(C) 1+ 1 a

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