For an angle

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

Problem

For an angle

\alpha

, it is given that

\cos \alpha = -\dfrac{\sqrt{3}}{2}

and

\pi < \alpha < \dfrac{3\pi}{2}

. (i) Find

\sin \alpha

. (ii) Find

\tan \alpha

. (iii) Evaluate the expression

2\sin \alpha - 3\cos \alpha

in its simplest form.

Related theory

Browse the problem library