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Let f(x) = log (sin x+ cos x), x in x (-...

Let f(x) = log (sin x+ cos x), x in x (-pi/4,(3pi)/(4))`
Then f is stricly increasing in the interval

A

`(-pi/4, pi/4)`

B

`(0, (3pi)/(8))`

C

`(pi/4, pi/2)`

D

`(pi/2, (3pi)/(4))`

Text Solution

Verified by Experts

The correct Answer is:
A
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