यदि 0^(@) lt theta lt 90^(@) और cos^(2)t...

यदि `0^(@) lt theta lt 90^(@)` और `cos^(2)theta` =3`(cot^(2)theta - cos^(2)theta)` है, तो `((1)/(2) sec theta + sin theta)^(-1)` का मान होगा :

A

`sqrt(3) +2`

B

`2(2-sqrt(3))`

C

`2(sqrt(3)-1)`

D

`sqrt(3) +1`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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