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[" 3.Ind "sin A cos C+cos A sin Cquad " ...

[" 3.Ind "sin A cos C+cos A sin Cquad " (ii) "sin A sin B+cos A cos B],[" (i) "Find" acute angles "A" and "B" ,if "sin(A+2B)=(sqrt(3))/(2)" and "cos(A+4B)=0,A>B" ."]

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