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If sin (A-B) =1/2,cos(A+B)=1/2 then find the value of A and B |
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Answer» Thx a lot kunal bro Sin (A-B) = sin 30 [ Here we cancel sin as they are on the both side]and cos ( A+B)= cos60 { similarly we also cancel cos} Now, A-B =30 A+B= 60 --------------- 2A= 90 ------------- A= 45 and B=15 |
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