Question

find the n'th term of the AP : 7, 13, 19, 25, ....

Answer 1

We know that nth term of an ap an = a + (n - 1) *d.

Given a = 7.

common difference d = 6.

Now,

an = 7 + (n - 1) * 6

     = 7 + 6n - 6

    = 6n + 1.


Therefore the nth term of an AP = 6n + 1.


Hope this helps!

Answer 2

Hi,

Please see the attached file !


Thanks