# Math

posted by
**Hu**
.

Use induction to prove the sum of the first n odd numbers, or 1 + 2 + 3 +....+ (2n 1) = n^2

posted by
**Hu**
.

Use induction to prove the sum of the first n odd numbers, or 1 + 2 + 3 +....+ (2n 1) = n^2