If f: R R is a twice differentiable function such that f''(x)>0 for all x R , and f ( 1 2 )= 1 2 , f(1)=1, then

JEE Advanced 2017 Mathematics question

If is a twice differentiable function such that for all , and , , then

Answer: (D)

By the mean value theorem there is with

Create a free account to read the complete working, and practise questions like this in a timed test.

Question ID VK-026685