In a right triangle

MATHEMATICS · Multi-part · CBSE · Mathematics · Introduction to Trigonometry · Introduction to Trigonometry

Problem

In a right triangle, an acute angle

\theta

satisfies

\sin \theta = \dfrac{3}{5}

. Use this information to answer the following. (i) Find

\cos \theta

. (ii) Hence calculate

\tan \theta

. (iii) Determine the value of

\dfrac{\sin^2 \theta - \cos^2 \theta}{\sin \theta \cos \theta}