Question

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

1, 3, 9, 27, ...

an = 1 • 3n + 1

an = 3 • 1n - 1

an = 1 • 3n - 1

an = 1 • 3n

Answer 1

i would say \(a_n=3^{n-1}\) but i don't see that as an answer

Answer 2

ya thats there thx i thought it was that one too