Question

Express 100 as the sum of 10 odd numbers​

Answer 1

Given 100 can be written as 10^2

According to the property of perfect square, for any natural number n, we have sum of first n odd natural numbers =n^2

Expressing 100 as a sum of 10 odd numbers, we get

81=(10)^2

Here n=10

By applying the law 81=(1+3+5+7+9+11+13+15+17+19)

Answer 2

Answer:

1+3+5+7+9+11+13+15+17+19=100

(sum of n consecutive odd numbers=n^2)