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Mathematics, 06.03.2020 09:55 24jgrove

Isolate the identity

cos 2x - cos 8x
cos 2x + cos 8x

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Isolate the identity  cos 2x - cos 8x cos 2x + cos 8x HELP PLS

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Answers: 3

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You know the right answer?
Isolate the identity

cos 2x - cos 8x
cos 2x + cos 8x

HELP PLS
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