If for an acute angle

MATHEMATICS · Subjective · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

If cos⁡θ=513\cos\theta = \dfrac{5}{13} for an acute angle θ\theta, calculate the value of 3sin⁡θ−2cos⁡θ3\sin\theta - 2\cos\theta.

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