Question

sum of first 'n' odd natural number is ------

Answer 1

Here,

common difference between any two consecutive numbers = 2

a = 3

so,

Sn = n/2(3 + (n - 1)2)

Sn = n/2(3 + 2 n - 2)

Sn = n/2(2n + 1)

Answer 2

Answer:

answer is

Step-by-step explanation:

sn=n/2(2n-1)

hope answer will help you