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For alpha and beta both being acute angl...

For `alpha` and `beta` both being acute angles, it is given that `sin (alpha+beta)=1, cos (alpha-beta)=1/2`. The value of `alpha` and `beta` are:
`alpha` और `beta` दोनों न्यून कोण है, और यह दिया गया है कि `sin (alpha+beta)=1, cos (alpha-beta)=1/2` है। तो `alpha` और `beta` का मान क्या होगा?

A

`75^@, 15^@`

B

`45^@ ,15^@`

C

`75^@, 45^@`

D

`60^@,30^@`

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