If and lies in the interval

MATHEMATICS · Multi-part · CBSE · Mathematics · Trigonometric Functions · Trigonometric Functions

Problem

If cos⁡α=−513\cos \alpha = -\dfrac{5}{13} and α\alpha lies in the interval (π, 3π2)(\pi,\,\tfrac{3\pi}{2}), find: (a) sin⁡α\sin \alpha (b) tan⁡α\tan \alpha

Related theory

Browse the problem library