Question

Question #96fc2

Answer 1

`t = 219^@`

Explanation:

Use calculator and unit circle:
`cos t = -7/9` --> `t = +- 141^@`
Since t is in Quadrant 3, take the negative value:
`t = - 141^@`, or `t = 360 - 141 = 219^@` (co-terminal)