SOLUTION: Given that sin = -1/2 and lies in quadrant IV, find the following value. cos

Algebra ->  Trigonometry-basics -> SOLUTION: Given that sin = -1/2 and lies in quadrant IV, find the following value. cos      Log On


   

Question 973846: Given that sin = -1/2 and lies in quadrant IV, find the following value.
cos
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Given that sin = -1/2 and lies in quadrant IV, find the following value.
cos
-----------------
Use the Pythagorean Identity sin^2 + cos^2 = 1
cosine is positive in Q4