hey can someone help me out with this limit
lim (n*19^n) / (20^n)
n->∞
thanks
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hey can someone help me out with this limit
lim (n*19^n) / (20^n)
n->∞
thanks
You can use the ratio test to test convergence.
The limit is < 1, therefore, it converges. But to what? Just look at the denominator, that should tell you something; It's larger than the numerator. Plug in some larger and larger values. What does it approach?
Try rewriting it as.
See what the limit is now?
This problem would be more interesting of you had to find the sum of the series.
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