Cosine of 120°
Calculate cosine of 120 degrees using the unit circle.
Answer:
cos(120°) = -0.5
Step-by-Step Solution
Step 1
Identify
Finding cos(120°)
Step 2
Convert to Radians
120° = 2.094395 rad
Step 3
Calculate
cos(120°) = -0.5
Step 4
Final Answer
-0.5