Question

Find an explicit rule for the nth term of the sequence.

4, -4, 4, -4, ...

an = 4 • 1n - 1
an = 4 • 1n + 1
an = 4 • (-1)n
an = 4 • (-1)n - 1

Answer 1

@rational Mind helping me out again with some more problems ive been missing ?

Answer 2

To me, it is \(a_n = 4(-1)^{n-1}\)