Given with in the first quadrant

MATHEMATICS · Single correct · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

Given sin⁡θ=35\sin\theta = \dfrac{3}{5} with θ\theta in the first quadrant, find the value of cos⁡2θ\cos 2\theta. (a) −725-\dfrac{7}{25} (b) 1625\dfrac{16}{25} (c) 725\dfrac{7}{25} (d) 2425\dfrac{24}{25}

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