Evaluate cos(2)

Problem

cos(2)

Solution

1. Identify the expression as the cosine of 2 radians.

2. Determine the approximate value using a calculator or trigonometric tables, ensuring the mode is set to radians rather than degrees.

3. Calculate the numerical value, noting that 2 radians is in the second quadrant where cosine is negative.

4. Round the result to a standard number of decimal places (typically four).

Final Answer

cos(2)≈−0.4161

Want more problems? Check here!