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Let S be the set of all points in (-pi, ...

Let S be the set of all points in `(-pi, pi)` at which the f(x)=min(sinx ,cosx) is not differentiable Then, S is a subset of which of the following?

A

`{-(3pi)/4,-pi/4,(3pi)/4,pi/4}`

B

`{-(3pi)/4,-pi/2,(pi)/2,(3pi)/4}`

C

`{-(pi)/2,-pi/4,(pi)/4,(pi)/2}`

D

`{-pi/4,0,pi/4}`

Text Solution

Verified by Experts

The correct Answer is:
A
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