((cos 9^@ + sin 81^@)(sec 9^@ + cosec 81...

`((cos 9^@ + sin 81^@)(sec 9^@ + cosec 81^@))/(2 sin^2 63^@ + 1 + 2 sin^2 27^@)` का मान है -

A

`4/3`

B

`1`

C

`1/2`

D

`2`

लिखित उत्तर

Verified by Experts

The correct Answer is:

A

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