Question

If the nth term of an A.P. is 5 + 4n. Find its common difference and the first three terms of the AP .​

Answer 1

Answer:

given

an=5+4n

A1,first term =5+4(1)=9

A2, second term=5+4(2)=13

d,common difference=a2-a1=13-9

d=4