Mathematics, 03.01.2020 17:31 dariagodoy8
Prove that: sin^3a+ sin^3(120+a) +sin^3(240+a)= -3/4 sin3a
Answers: 3
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Prove that: sin^3a+ sin^3(120+a) +sin^3(240+a)= -3/4 sin3a...
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