Question

If the sum of first n terms of an A.P
is n2, find the common difference

Answer 1

Answer:

d is 2

Step-by-step explanation:

let a1 be 1

pu the value

a1= n2

= 1 sq = 2

a2 = 4

a3 = 6 ......

so the common difference is

= a2 - a1

= 4 - 2

d = 2