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The set of angles between 0 and 2pi sati...

The set of angles between `0` and `2pi` satisfying the equation `4cos^2theta-2sqrt2costheta-1=0` is

A

`{(pi)/(12),(5pi)/(12),(19pi)/(12),(23pi)/(12)}`

B

`{(pi)/(12),(7pi)/(12),(17pi)/(12),(23pi)/(12)}`

C

`{(5pi)/(12),(13pi)/(12),(19pi)/(12)}`

D

`{(pi)/(12),(7pi)/(12),(17)/(12),(23pi)/(12)}`

Text Solution

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The correct Answer is:
B
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