Q6 of 176 Page 9

Which of the following list of numbers form A.R's? If they form an A.P., find the common difference d and also write its next three terms.

We have,

i.e. a_k+1 – a_k is the same every time.

So, the given list of numbers forms an AP with the common difference

Now, we have to find the next three terms.

We have

Now, we will find a₅, a₆ and a₇

So,

and

Hence, the next three terms are

Which of the following list of numbers form A.R's? If they form an A.P., find the common difference d and also write its next three terms.

- 2, 2, - 2, 2, - 2, ...

Which of the following list of numbers form A.R's? If they form an A.P., find the common difference d and also write its next three terms.

0, - 4, - 8, - 12,

Which of the following list of numbers form A.R's? If they form an A.P., find the common difference d and also write its next three terms.

4, 10, 16, 22, ...