Cosine of 255°
Calculate cosine of 255 degrees using the unit circle.
Answer:
cos(255°) = -0.258819
Step-by-Step Solution
Step 1
Identify
Finding cos(255°)
Step 2
Convert to Radians
255° = 4.45059 rad
Step 3
Calculate
cos(255°) = -0.258819
Step 4
Final Answer
-0.258819