Given with , find…

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

Given cos⁡θ=−725\cos\theta=-\dfrac{7}{25} with 180∘<θ<270∘180^{\circ}<\theta<270^{\circ}, find sin⁡θ\sin\theta. (a) −1225-\dfrac{12}{25} (b) 2425\dfrac{24}{25} (c) −2425-\dfrac{24}{25} (d) −725-\dfrac{7}{25}

Related theory

Browse the problem library