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Trigonometry : Solving Identites Over Given Intervals

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Solve the following equations in the interval given in brackets:
√3 sin 2θ + 2 sin^2 θ=1 {0 ≤ θ ≤ pi}
cos 2θ=5 sinθ {-pi ≤ 0 ≤ pi}.

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Trigonometric identities are solved over given intervals.

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