Question

if common ratio of GP is 1 Sn=n then find first term​

Answer 1

Answer:

1

Step-by-step explanation:

let the GP be

a, ar, ar^2, ar^3, ... , ar^n. (a not equal to 0)

as it's given common ratio equals 1

ar / a = 1

r = 1

now GP becomes

a, a, a, ... , a

Sum of n terms will be n only when a is an identity.

i.e a = 1

hence GP should be

1, 1, 1, ... , 1