Question

If $\cos \theta =\frac{3}{5}$, then value of $\tan \theta$ is :

• A. $\frac{1}{5}$
• B. $\frac{2}{3}$
• C. $\frac{4}{5}$
• D. $\frac{4}{3}$

Answer 1

The correct option is D $\frac{4}{3}$

Given, $\cos \theta =\frac{3}{5}=\frac{b}{h}$
$\therefore p=\sqrt{25-9}=\sqrt{16}=4$
Therefore, $\tan \theta =\frac{p}{b}=\frac{4}{3}$