Question

Using the unit circle find the exact value. CSC -30º =​

Answer 1

Answer:

csc (- 30)° = - 2

Step-by-step explanation:

Using the trigonometric relationship

csc x = $\frac{1}{sinx}$ and the exact value sin30° = $\frac{1}{2}$

sin(- 30)° = - sin30° = - $\frac{1}{2}$, thus

csc (- 30)° = $\frac{1}{-\frac{1}{2} }$ = - 2