Question

1.Implement a function which will -       + Accept a number, num, and a list, my_list...

1.Implement a function which will -
      + Accept a number, num, and a list, my_list as arguments
      + return True if num exists in my_list
      + return False otherwise

2. Write Python code to implement the following function -

def find_in_list(item, my_list):
    """
    Look for an item from my_list (of items.)
    If the item is found, return the index position of the item;
    otherwise, return -1.
    """
      #add your code here

3. Given the following list:

      matrix = [[1,2,3],[4,5,6],[7,8,9]]    

Implement logic to extract [7, 5, 3] from matrix.

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