Question

Find the first five terms of each arithmetetic sequence describe a1 = -12 d = 5

Answer 1

- 12, - 7, - 2, 3, 8

Explanation:

The general terms of an arithmetic sequence are

a, a + d, a + 2d + ....... + a + (n - 1 )d

To obtain consecutive terms in the sequence add d = 5 to the previous term

`a_(1)` = - 12

`a_(2)` = - 12 + 5 = - 7

`a_(3)` = - 7 + 5 = - 2

`a_(4)` = - 2 + 5 = 3

`a_(5)` = 3 + 5 = 8