यदि sin (2a + 45^(@)) = cos (30^(@) - a)...

यदि `sin (2a + 45^(@)) = cos (30^(@) - a)`, जहाँ `0^(@) lt a lt 90^(@)`, तो a का मान क्या होगा ?

A

`0^(@)`

B

`15^(@)`

C

`45^(@)`

D

`60^(@)`

लिखित उत्तर

Verified by Experts

The correct Answer is:

B

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