Trigonometry - Trigonometric Equations

Trigonometry - Trigonometric Equations

Solve \(\sin 2x + 2 \sin x - \cos x - 1 = 0\) for \(0{}^\circ \le x \le 360{}^\circ\).

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Answer:\(x=30^\circ,\ 150^\circ,\ 180^\circ\)

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