Cosine of 105°

Calculate cosine of 105 degrees using the unit circle.

( °)
Answer: cos(105°) = -0.258819
Step-by-Step Solution
Step 1 Identify

Finding cos(105°)

Step 2 Convert to Radians

105° = 1.832596 rad

Step 3 Calculate

cos(105°) = -0.258819

Step 4 Final Answer

-0.258819