Question

Compute the first four terms of the sequence (-2)*k k>=o

Answer 1

The fist four terms are 0, -1, -4, -6.

Explanation:

Since
`k\geq 0`, the fist four terms of the sequence correspond to those in wich
`k` takes the values 0, 1, 2 and 3, that is

• For
  `k=0`:
  `(-2)*k = (-2)*0 = 0`

• For
  `k=1`:
  `(-2)*k = (-2)*1 = -2`

• For
  `k=2`:
  `(-2)*k = (-2)*2 = -4`

• For
  `k=3`:
  `(-2)*k = (-2)*3 = -6`