Given and lies in Quadrant III

MATHEMATICS · Single correct · AP · AP Precalculus · Trigonometric and Polar Functions · Trigonometric and Polar Functions

Problem

Given sin⁡θ=−35\sin\theta = -\dfrac{3}{5} and θ\theta lies in Quadrant III, find cos⁡θ\cos\theta. (a) 45\dfrac{4}{5} (b) −1625-\dfrac{16}{25} (c) −45-\dfrac{4}{5} (d) −35-\dfrac{3}{5}

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