Advertisements
Advertisements
प्रश्न
Which of the following lists of numbers form an A.P.? If they form an A.P., find the common difference d and write the next three terms : – 2, 2, – 2, 2,…..
उत्तर
– 2, 2, – 2, 2,…
Here, a = –2
d = 2 – (–2)
= 2 + 2 = 4
–2 – 2 = –4
2 – (–2) = 4
∵ common difference is not same.
∴ It is not an A.P.
APPEARS IN
संबंधित प्रश्न
Find the 24th term of the sequence:
12, 10, 8, 6, .......
Find the 30th term of the sequence:
`1/2, 1, 3/2,.........`
Find the 50th term of the sequence:
`1/n, (n + 1)/n, (2n + 1)/n,..........`
How many terms are there in the series 4, 7, 10, 13, ........,148?
Find the 10th term from the end of the A.P. 4, 9, 14, .........., 254.
Find the 31st term of an A.P. whose 10th term is 38 and the 16th term is 74.
How many three-digit numbers are divisible by 87?
If a, b and c are in A.P. show that 4a, 4b and 4c are in A.P.
Which of the following lists of numbers form an A.P.? If they form an A.P., find the common difference d and write the next three terms : a, 2a, 3a, 4a,...
In the A.P. 8, 13, 18, ........., the nth term is 83, then n is equal to ______.
