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যদি thetain(frac[pi][2],frac[3pi][2]) হয়...

যদি `thetain(frac[pi][2],frac[3pi][2])` হয়, তবে `sqrt(4cos^4theta+sin^2(2theta)+4cotthetacos^2(frac[pi][4]-frac[theta][2])`=

A

`-2cot theta`

B

`2cot theta`

C

`2cos theta`

D

`2sin theta`

Text Solution

Verified by Experts

The correct Answer is:
B
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