Question

If the 9 term of an A.P. is zero then show that the 29 term is twice the 19 term. go Let's learn.​

Answer 1

Answer:

29th term = 2 x 19th term

Step-by-step explanation:

In an AP,

9th term= 0 = a +8d

To prove: 29th term=2 x 19th term

or, a+28d = 2(a +18d)

or, a+28d = 2a + 36d

or, a-2a = 36d - 28d

or, - a = 8d

or, a + 8d = 0

0 = 0 (True) [since 9th term is given 0]

Proved.