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Function f(x) = sin x – cos x is monoto...

Function `f(x) = sin x – cos x` is monotonic increasing when -

A

`x in (0, pi//2)`

B

`x in (-pi//4, 3pi//4)`

C

` x in (pi//4, 3pi//4)`

D

No where

Text Solution

Verified by Experts

The correct Answer is:
B
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