Question

Find an explicit rule for the nth term of the sequence. 7, -7, 7, -7, ...

Answer 1

I don't think there's a rule since it's 7, -7, and it keeps going like that forever

Answer 2

It diverges

Answer 3

I had a problem like this before and it was 1, -1, 1, -1... and I wrote that it diverges and got it right

Answer 4

@jennisicle its not in my answer choices
an = 7 • (-1)n - 1

an = 7 • (-1)n

an = 7 • 1n - 1

an = 7 • 1n + 1

Answer 5

a1 = 7, a2 = -7, etc

an = 7(-1)^(n-1) n = 1 to ...

A