Question

If the 9th term of an A.P. is zero then show that the 29th term is twice the 19th term.​

Answer 1

Answer:

$a + (n - 1)d = an$

a + (9-1)d = a9

a + 8d = 0

a = -8d

a29 = a + (29-1)d

a29 = -8d + 28d = 20d

a19= a + (19-1)d

a19 = -8d + 18d = 10d

so, a29 = 20d which is twice of a19 which is 10d.

hope u understand what's the meaning of these

an , a29 , a19

here , a is term and n or other constants are no . of terms

Answer 2

Answer:

..MAI...AAPKE HEART MAI REHTA HUN

Step-by-step explanation:

... DELHI MAI.... .. .SUNO MAI NO DUN KYA AAPKO