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Recursion Warmup - An Odd Sum

Discrete Mathematics Level 1

What is the sum of the first 13 positive odd numbers?

49 144 169 180

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

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including olympiad champions, researchers, and professionals.

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by Zandra Vinegar

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