Define some built_in functions in python

Answer 1

Here are 3 helpful resources to go through for built in function:

https://docs.python.org/3/library/functions.html

https://www.w3schools.com/python/python_ref_functions.asp

https://www.google.com/amp/s/www.geeksforgeeks.org/python-built-in-functions/amp/

Also go through this thread with similar question:
https://www.sololearn.com/Discuss/3203119/?ref=app

Answer 2

The documentation:
https://docs.python.org/3/library/functions.html

I am sure you could have found them yourself.