Question

Write trigonometric ratios for the $△PQR$.

Answer 1

In the figure;
Hypotenuse $=5$ units, Opposite $=3$ units, Adjacent $=4$ units.
$\therefore \sin \theta =\frac{Opp}{Hyp}=\frac{3}{5}$
$\cos \theta =\frac{Adj}{Hyp}=\frac{4}{5}$
$\tan \theta =\frac{Opp}{Adj}=\frac{3}{4}$
$\csc \theta =\frac{Hyp}{Opp}=\frac{5}{3}$
$\sec \theta =\frac{Hyp}{Adj}=\frac{5}{4}$
$\cot \theta =\frac{Adj}{Opp}=\frac{4}{3}$