SOLUTION: express as a product sin(6t) + sin(2t)
-> SOLUTION: express as a product sin(6t) + sin(2t)
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express as a product sin(6t) + sin(2t)
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The result says sinC + sinD = 2sin(C+D)/2 Cos (C-D)/2
So sin(6t) + sin(2t)= 2sin(6t+2t)/2 Cos(6t-2t)/2
= 2sin(8t/2) Cos (4t/2)
= 2sin(4t) Cos(2t)