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what is the most effective way to solve this problem ?

jjjjj.PNGwhat is the most effective way to solve this problem ?

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sen(B+C)=senB.cosC+senC.cos... View the full answer

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Okay, So here is the approach. We are given two equations 3SinB+4CosC =6 4SinC +3CosB=1 Now square both the equations and... View the full answer

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