Question

Using the unit circle, determine the value of cos(–150°).

Answer 1

Answer:

$-\frac{\sqrt{3} }{2}$

Step-by-step explanation:

cos(-150)

$-\frac{\sqrt{3} }{2}$

rate my answer please

Answer 2

Answer:

$\frac{-\sqrt[2]{3} }{2}$

Step-by-step explanation:

hope this helps!