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For `alpha` and `beta` both being acute angles, it is given that `sin(alpha + beta) = 1,cos (alpha-beta)=1/2`. The values of `alpha` and `beta` are:
यदि `alpha` और `beta` दोनों न्यून कोण है तथा यह दिया गया है कि `sin(alpha + beta) = 1,cos (alpha-beta)=1/2` है, तो `alpha` और `beta` के मान ज्ञात करें |

A

`75^@,15^@`

B

`45^@,15^@`

C

`75^@,45^@`

D

`60^@,30^@`

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