The set of points of continuity of the f...

The set of points of continuity of the function `y=sqrt((1)/(2)-cos^(2)x)` contains in the interval

A

`[(pi)/(4),(3pi)/(4)]`

B

`[(5pi)/(4),(7pi)/(4)]`

C

`[(21pi)/(4),(23pi)/(4)]`

D

All the above

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The correct Answer is:

B

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