Question

The interval in which is increasing is

(A) (B) (−2, 0) (C) (D) (0, 2)

Answer 1

We have,

The points x = 0 and x = 2 divide the real line into three disjoint intervals i.e.,

In intervalsis always positive.

∴f is decreasing on

In interval (0, 2),

∴ f is strictly increasing on (0, 2).

Hence, f is strictly increasing in interval (0, 2).

The correct answer is D.