Question: (PYTHON) Use recursion to solve the problems as indicated. Question 1: Write a recursive program that calculates triangle numbers (do not use any loops in

(PYTHON) Use recursion to solve the problems as indicated.

Question 1: Write a recursive program that calculates triangle numbers (do not use any loops in this program).

A triangle number of a positive integer is the sum of all the numbers less than or equal to that number. For example, triangle(5) = 1 + 2 + 3 +4 + 5 = 15; triangle(9) = 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 45, etc.

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