Posted by **Ty** on Wednesday, January 20, 2010 at 11:15am.

Consider the following sums of numbers and how they

are formed:

1 odd number

}

2 odd numbers

678

3 odd numbers

64748

Predict the following sum and complete the

generalization:

a. 1 + 3 + 5 + 7 + 9 + 11 = ?

b. 1 + 3 + 5 + Á + (2n - 1) = ?