Cosine of 180°
Calculate cosine of 180 degrees using the unit circle.
Answer:
cos(180°) = -1
Step-by-Step Solution
Step 1
Identify
Finding cos(180°)
Step 2
Convert to Radians
180° = 3.141593 rad
Step 3
Calculate
cos(180°) = -1
Step 4
Final Answer
-1