The Sum of Odd Numbers is a Perfect Square!
Take the first three odd numbers: 1, 3, and 5. The sum is 9. First four odd numbers add up to 16. And 25 is the sum of first five odd numbers. Did you notice a pattern? Yes, the sum of n odd natural numbers is n^2!
Can we prove this result using any simple method? using some algebra? Believe it or not, we can prove this result without using any words too! Check this video out to learn some interesting facts.
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