sin22a + 2sin2a cos2a + cos22a = 1 + 2sin2a cos2a = 1/9
2 sin2a cos2a = = sin4a = -8/9
Nika M.
asked 12/21/20sin22a + 2sin2a cos2a + cos22a = 1 + 2sin2a cos2a = 1/9
2 sin2a cos2a = = sin4a = -8/9
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