Find the number of values of in the interval satisfying the equation .

MATHEMATICS · Subjective · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Find the number of values of xx in the interval [0,5π][0, 5\pi] satisfying the equation 3sin⁡2x−7sin⁡x+2=03\sin^2 x - 7\sin x + 2 = 0 .

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