Question

find the 15th term of the ap 3,6,9....using suitable formula​

Answer 1

Answer:

Given A.P. is 3,7,11,15,....

Here a=3,d=4

We know T  

n

​  

=a+(n−1)d

=3+(n−1)4

=4n−1

Answer 2

Answer in attachment:)

Hope it helps ✌