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Let f(x) =2 sin x + cos 2x (0 le x le 2p...

Let `f(x) =2 sin x + cos 2x (0 le x le 2pi) and g(x) = x + cos x` then

A

g is a decreasing function

B

f increases on `(0, pi//2)`

C

f increases on `(0, pi//6) uu (pi//2, 5pi//6)`

D

f decreases on `(0, pi//2)`

Text Solution

Verified by Experts

The correct Answer is:
C
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