Question

What is s(n)-s(n-1) in AP​

Answer 1

Answer:

yes

Step-by-step explanation:

s(n -1) -s(n)=as UC vsvsisvs

Answer 2

Step-by-step explanation:

sn is n/2[2a¹+(n-1)d]

sn-1 is (n-1)/2[2a¹+(n-1-1)d]

(n-1)/2[2a¹+(n-2)d]

Hope this is helpful