Convert from Degrees to Radians cos(90)

Problem

cos(90)

Solution

1. Identify the conversion factor between degrees and radians.

180=π* radians

2. Set up the conversion by multiplying the degree measure by π/180

90⋅π/180

3. Simplify the fraction by dividing both the numerator and the denominator by their greatest common divisor, which is 90

(90*π)/180=π/2

4. Rewrite the original expression using the radian measure.

cos(π/2)

Final Answer

cos(90)=cos(π/2)

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