If sin (2a + 45 ) = cos (30 a), where 0 < a < 90 , then the value – McqOptions

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1.	If sin (2a + 45 ) = cos (30 a), where 0 < a < 90 , then the value of a is :
A.	0
B.	15
C.	45
D.	60
Answer» C. 45

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