Convert from Degrees to Radians cos(15)

Problem

cos(15)

Solution

1. Identify the conversion factor between degrees and radians. Since 180 is equal to π radians, the conversion factor is π/180

2. Multiply the angle in degrees by the conversion factor to find the angle in radians.

15⋅π/180

3. Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 15

15/180=1/12

4. Substitute the radian value back into the trigonometric function.

cos(π/12)

Final Answer

cos(15)=cos(π/12)

Want more problems? Check here!