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Mathematics, 07.04.2021 14:00 kakkakak1320

Find the exact values of sin 2u, cos2u, and tan2u using the double-angle formulas Cot u= square root 2, pi < u < 3pi/2

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Find the exact values of sin 2u, cos2u, and tan2u using the double-angle formulas Cot u= square root...
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