Question

If An 4^n converges then what can you say about the convergence or the divergence of the
series An (-2)^n and An (-4)^n ?

Answer 1

Have you used the direct comparison test before?

Answer 2

I don't know how to use it?

Answer 3

can you tell me the way to do it correctly? this

Answer 4

4^n will never converge...Is it 4^n / n ?