Mathematics, 22.08.2020 14:01 tatskuntz1

If cot^(4)x − cot^(2)x = 1, then the value of cos^(4)x + cos^(2)x is

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If cot^(4)x − cot^(2)x = 1, then the value of cos^(4)x + cos^(2)x is...

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