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Mathematics, 05.05.2020 15:43 jacobbecker99

(Prove that):
(cos 7A + cos 3A - Cos 5A - COS A) / (sin 7A - sin 5A - sin3A + sinA) = cot 2A

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(Prove that):
(cos 7A + cos 3A - Cos 5A - COS A) / (sin 7A - sin 5A - sin3A + sinA) = cot 2A...
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