solve the sum of the first 9 terms of an A.P is 72 and the sum of the next 4 terms is72 .find the A.P.

Answer 1

answer

Answer 2

stop posting the same question over and over.
sometimes it takes a while for someone to stop by who feels able to help.
See your first posting of this. Apparently you haven't been working on it in the meantime.

Answer 3

noone will help ya if you keep re-posting kid.