Trigonometry - Trigonometric Equations
Trigonometry - Trigonometric Equations
Find the exact values of \(x\) that satisfies the equation \(2 \cos^2 x + 5 \sin x + 1 = 0\) for \(0 \le x \le 7\).
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Answer:\(x=\frac{7\pi}{6},\ \frac{11\pi}{6}\)
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