Question

Write the first five terms of the arithmetic sequence.

Answer 1

a1 = 4

a2= -2

a3 = -8

a4= -14

a5= -20

Explanation:

a12= a1 + 11d

-62 = 4 + 11d

-62-4 = 11d

-66= 11d

d =
`(-66)/(11)\\`

= -6

a1 = 4

a2 = 4 - 6 = -2

a3 = 4 - (6×2) = -8

a4 = 4 - (6×3) = -14

a5 = 4 - (6×4) = -20