यदि sec(5alpha - 15^(@))= cosec (15^(@)...

यदि `sec(5alpha - 15^(@))= cosec (15^(@)- 2alpha)` है, तो `cosalpha+ sin2alpha+ tan(1.5alpha)` का मान ज्ञात करें।

A

`sqrt(3)-1`

B

`sqrt(2)-1`

C

`sqrt(3)+1`

D

`sqrt(2)+1`

लिखित उत्तर

Verified by Experts

The correct Answer is:

C

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