Question

The nth term of an A.P is given by an=3n+4n.The comman difference is

Answer 1

Answer:

common difference is 7

Step-by-step explanation:

an = 3n+4n

for the first term substitute 1 in place of n

a1 = 3 ( 1 ) + 4 ( 1 ) = 7

for the second term substitute 2 in place of n

a2 = 3 ( 2 ) + 4 ( 2 ) = 14

so to obtain common difference, a2-a1 i.e.,

14 - 7 = 7