Use the unit circle to find the value of csc (90°)

Answer:
[tex]\csc(90 \degree)}=1[/tex]
Step-by-step explanation:
We want to find the value of [tex]\csc(90\degree)[/tex].
Recall from the reciprocals of trigonometric ratios that;
[tex]\csc(90\degree)=\frac{1}{\sin 90\degree}[/tex]
On the unit circle, [tex]\sin(90\degree)=1[/tex]
This implies that;
[tex]\csc(90\degree)=\frac{1}{1}=1[/tex]