Question

nth term of an A.P an=3+2n.
find the common difference.​

Answer 1

Answer:

The common difference of an A.P. is given by

$\rm \: a_{n+1} −a_n$

$\rm \: ∴d=a_{n+1} −a_n$

$\rm \: =3+2(n+1)−(3+2n)$

$\rm \: =2n+2−2n$

$\rm \: = 2$

Hence, the common difference d=2