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If sin(A-B)=1/2,cos(A+B)=1/2,0^@lt(A+B)l...

If `sin(A-B)=1/2,cos(A+B)=1/2,``0^@lt(A+B)le90^@`, `AgtB`, find A and B.

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`sin(A−B)=1/2` ​
`⇒sin(A−B)=30^@`
`[∵sin30^@= 1/2]` ​
On equating both sides `A−B=30^@`...(1) ...
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