Question

Find the sum of first ' n ' odd natural number also find the sum of first 26 terms of the AP =1,2,3,5,7

Answer 1

Answer:

n^2

Step-by-step explanation:

as we want the sum of first odd natural no. we just square the no of digit

for example sum of first six odd natural no. is

1+3+5+7+9= square of numbers i.e. 5^2

which is 25

therefore the sum of first 5 odd no. is 25

(note:please check your question because you had written 2 also that is an even no.)

Hope it helps you