Question

If 9th terw of an a.p is 0 then show that the 29 term is twice the 19th term

Answer 1

Step-by-step explanation:

by applying tis method we prove this answer

Answer 2

Answer:

Step-by-step explanation:

a9=0(given)

=a+8d=0

So a= -8d

a29= a+28d= -8d+28d=20d

a19=a+18d= -8d+18d=10d

Hence a29=2*a19