What is the sum of the first 60 odd numbers?
did you try listing the first few? The pattern should be clear
1 = 1
1+3 = 4
1+3+5 = 9
1+3+5+7 = 16
Does the sequence
1,4,9,16,25,36,...
look familiar?
1 = 1
1+3 = 4
1+3+5 = 9
1+3+5+7 = 16
Does the sequence
1,4,9,16,25,36,...
look familiar?