# Python Math cos() Function Example

Python cos() is an inbuilt method defined under the math module, which is used to find the cosine value of the parameter passed in radians.

Python cos() is an inbuilt method defined under the math module, which is used to find the cosine value of the parameter passed in radians. We can use the math module by importing it. The syntax for it would be import math; after importing, we use to call this function using the static object.

### Python math cos()

The math.cos() function returns the cosine of the value passed as an argument. The value passed in the cos() function should be in radians. The Math.cos() method returns the numeric value between -1 and 1, which represents the cosine of the angle given in radians. The cos() is the static method of Math; therefore, it is always used as Math.

#### Syntax

``math.cos(var)``

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