Hello. I would like to calculate the average power of the signal x[n] = n. I know the formula I need to use is P = lim(N→∞) (1/(2N+1)) ∑ [ n = -N, N] |x[n]|^2 . I have no idea how to apply it to just x[n] = n. I plug n in as x[n] to get n^2 and then what? Must I change the limits of summation to n = 0, N , or n = 0, ∞, or n = -∞, ∞, or something else? I solved two problems like this and both times n "disappeared" so it wasn't an issue.