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If Sin (A-B) -1/2 and CostA+B) = 1/2 find A and B |
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Answer» Answer: 15 Step-by-step EXPLANATION: Sin (A-B)=1/2 ALSO Sin60°=1/2 therefore A-B=60 Cos (A+B)=1/2 also cos 30°=1/2. Therefore A+B=30 Now by elimination method we GET A=45. |
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