Express 144 as sum of first odd number?
Answers
Answered by
3
We know that the sum of the first n odd natural numbers is equal to n
2
, for every natural number n.
Therefore, the sum of first 12 odd natural numbers is equal to 12
2
=144.
Now, the first 12 odd numbers are 1,3,5,7,9,11,13,15,17,19,21,23 and their sum is determined as follows:
1+3+5+7+9+11+13+15+17+19+21+23=12
2
=144
Hence 1+3+5+7+9+11+13+15+17+19+21+23=144
pls mark as brainlist
pls
Similar questions