If sin (alpha - beta) =1/2 and cos (alph...

If `sin (alpha - beta) =1/2 and cos (alpha + beta) =1/2,` where` alpha and beta` are positive acute angles, then `alpha and beta` are

A

`alpha =45^(@) , beta =15^(@)`

B

`alpha =15^(@), beta =45^(@)`

C

`alpha =60^(@) , beta=15^(@)`

D

`alpha = 15^(@), beta =60^(@)`

Verified by Experts

The correct Answer is:

A

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