Check if the given number is even or not. Your function should return True if the number is even, and False if the number is odd.
Input: An int.
Output: A bool.
is_even(2) == True is_even(5) == False is_even(0) == True
How it’s used: (math is used everywhere)
Precondition: both given ints should be between -1000 and 1000