Cosine of 225°
Calculate cosine of 225 degrees using the unit circle.
Answer:
cos(225°) = -0.707107
Step-by-Step Solution
Step 1
Identify
Finding cos(225°)
Step 2
Convert to Radians
225° = 3.926991 rad
Step 3
Calculate
cos(225°) = -0.707107
Step 4
Final Answer
-0.707107