Question

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

Answer 1

csc (- 30)° = - 2

Explanation:

Using the trigonometric relationship

csc x =
`(1)/(sinx)` and the exact value sin30° =
`(1)/(2)`

sin(- 30)° = - sin30° = -
`(1)/(2)`, thus

csc (- 30)° =
`(1)/(-(1)/(2) )` = - 2