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Programs on Recursion.

- Write a recursive function to calculate factorial of a number.
- Write a recursive function to find Nth term of Fibonacci series.
- Write a recursive function to sort an array.
- Write a recursive function to print first N natural numbers.
- Write a recursive function to print first N natural numbers in reverse order.
- Write a recursive function to calculate sum of digits of a number.
- Write a recursive function to calculate sum of squares of digits of a number.
- Write a recursive function to calculate sum of cubes of first N natural numbers.
- Write a recursive function to calculate determinant of any order.