Question

the 12th term of a.p is 14 than what is the 18th term of a.p is please tell it ​

Answer 1

Step-by-step explanation:

As we know for an AP with first term a and common difference d, genral term is a

n

=a+(n−1)d

∴a+3d=14 and

a+11d=70

On subtracting both the above equations, we get

8d=56

or d=7

∴a=−7

hope it helps