Question: 2 sin r Evaluate (1 + 3 cosx) Hint: Use symmetry Isin 12 (1 -E 3 cosm)2 Hint: use symmetry!


2 sin r Evaluate (1 + 3 cosx) Hint: Use symmetry
Isin 12 (1 -E 3 cosm)2 Hint: use symmetry!
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