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Ch 8 8.2.ka example 8

Answer» Sin(A-B)=1/2Sin30`=1/2So,A-B=30=eq1Cos(A+B)=1/2Cos60`=1/2So,A+B= 60=eq2Add eq 1 and 2,we getA-B=30 + A+B=60We get,A=45` and B=15`


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