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26 November, 08:00

Find all values of x in the interval [0, 2π] that satisfy the equation. 2 sin (2x) = 2 cos (x)

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  1. 26 November, 09:15
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    in 2X = CosX. 2 SinxCosX - CosX = 0. CosX (2 Sin X - 1) = 0. Cos X = 0 X = 90° = π/2 or X = 270° = 3π/4. 2SinX = 1 X = 30° = π/6 or X = 150° = 5π/6. 1/6/2014 ...
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