Question

find the common difference d in the following aps a=3 n=8 d=?​

Answer 1

Given :-a=3,n=8

an=a+(n-1)d

a8=3+(8-1)d

a8=3-7d

3-7d=0

Let us assume that 3-7d=0

=>3=7d

=>7d=3

=>d=3/7