Question

Find the first 5 terms of the sequence: an = n2 - 2n. Enter your answers separated by commas; example: 1, -5, 10, -15, 20

Answer 1

I get 1, -1, 1, -1, 1... I feel like that is wrong though

Answer 2

JK I got -1, 3, 3, 3, 3... Still seems wrong

Answer 3

@Here_to_Help15

Answer 4

JK both of those are wrong...

Answer 5

I got it, it is -1, 0, 3, 8, 15

Answer 6

ok, let check
n=1, then \(a_1 = 1^2 -2*1 = -1\)
n =2, then \(a_2 = 2^2 -2*2 = 0\)
n =3 , then \(a_3 = 3^2 -2*3 = 3\)

Answer 7

ok, I can stop now, hihihi

Answer 8

haha thank you though haha

Answer 9

1) It will depend on whether you start with a(0) or a(1).
If you start with a(0), we will have: 0, -1, 0, 3, 8
If you start with a(1), we will have: -1, 0, 3, 8, 15