Question

Write the relation between Sn nd nth term of an AP​

Answer 1

Answer:

Step-by-step explanation:

Let a be the first term of AP

     an be the nth term of AP

     Sn be the sum of n terms of AP

The relation is

Sn = $\frac{n(a+an)}{2}$

Answer 2

Answer:

LET FIRST TERM OF AP BE 'A'....

and LET 'AN' BE THE NTH TERM OF AP...

AND ALSO 'sn' BE THE SUM OF 'N' TERMS

SO THE RELATION WHICH WE CAN SEE IS

SN=n(a+an) / 2