Q3 of 105 Page 133

For the following APs, write the first term and the common difference.
-5, -1, 3, 7

In the above series first term (a) is -5

Common difference (d) is given by 2^nd term - 1^st term

⇒ d = -1 – (-5)

⇒ d = 4

Write first four terms of the AP, when the first term a and the common difference d are given as follows:

a = -1.25, d = -0.25

For the following APs, write the first term and the common difference.

3, 1, -1,-3

For the following APs, write the first term and the common difference.

0.6, 1.7, 2.8, 3.9

Questions · 105

6. Progressions

1 1 1 1 2 2 2 2 2 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 1 2 2 3 3 3 3 3 4 5 5 6 7 8 9 10 11 12 13 14 15 16 17 1 1 1 1 2 2 2 3 3 3 3 3 3 3 4 5 6 7 7 8 9 10 11 12 13 14 1 1 1 2 2 2 2 3 3 3 3 3 3 3 3 3 4 1 1 1 1 2 3 3 4 4 4 5 6 7

For the following APs, write the first term and the common difference.-5, -1, 3, 7