Question

In an AP an=2n+1 then lind the common
difference of
an AD​

Answer 1

Answer:

an = 2n +1

a(1) = 2(1) + 1= 3

hence the first term of the AP is 3

a(2) = 2(2) + 1 = 5

a(3) = 2(3) + 1  =7

hence the AP formed is 3,5,7,...

so common difference d = a2-a1 = 5-3 = 2