If the function f:[1, \infty) \to[1, \infty) is defined by f(x)=2^{x(x-1)}, then f^{-1}(x) is defined by

Correct Answer is : 12(1−√1−4log2x)

\frac{1}{2} (1 \pm \sqrt{1+4 \log _2 x})

\frac{1}{2} (1-\sqrt{1-4 \log _2 x})

CGPET 2014 Solved Paper

Section: Mathematics

Question : 137 of 150

Marks: +1, -0

If the function f:[1,∞)→[1,∞) is defined by f(x)=2x(x−1), then f−1(x) is defined by

Go to Question:

Prev Question

Next Question