Final answer:
An example of a built-in module in Python is the math module, which provides access to mathematical functions and constants.
Step-by-step explanation:
An example of a built-in module in Python is the math module. This module provides access to various mathematical functions and constants. For example, you can use the math.sqrt() function to calculate the square root of a number or the math.pi constant to access the value of pi.
Another example is the random module, which allows you to generate random numbers. You can use the random.randint() function to generate a random integer within a specified range or the random.choice() function to select a random item from a list.
Lastly, the datetime module provides classes for working with dates and times. You can use the datetime.datetime.now() function to get the current date and time or the datetime.timedelta() function to perform calculations with dates and times.