This is a C++ Programming class

Question is:

1. Implement a recursive method fibo that takes an integer num as a parameter and returns the nth Fibonacci number. 2. Implement a recursive method printDigits that takes an integer num as a parameter and prints its digits in reverse order, one digit per line. 3. Implement a recursive method mult that takes two integer parameters, x and y and returns their product. 4. Write a program that tests the three methods above.