Question

The nth term of an AP is (3n +5 ). Find its common difference.

Answer 1

We have
T_n = (3n +5)
Common difference = T₂- T₁

<sub>`</sub>T_1 = 3 xx 1 +5=8`

`T_2 = 3 xx 2 + 5=11`

d= 11-8-3

Hence, the common difference is 3.