Answer:
The fist four terms are 0, -1, -4, -6.
Step-by-step explanation:
Since [tex] k\geq 0 [/tex], the fist four terms of the sequence correspond to those in wich [tex] k [/tex] takes the values 0, 1, 2 and 3, that is
- For [tex] k=0 [/tex]: [tex] (-2)*k = (-2)*0 = 0 [/tex]
- For [tex] k=1 [/tex]: [tex] (-2)*k = (-2)*1 = -2 [/tex]
- For [tex] k=2 [/tex]: [tex] (-2)*k = (-2)*2 = -4 [/tex]
- For [tex] k=3 [/tex]: [tex] (-2)*k = (-2)*3 = -6 [/tex]
