What is the natural log of infinity?

1 Answer
Amory W.
Sep 21, 2014

The answer is oo∞.

The natural log function is strictly increasing, therefore it is always growing albeit slowly. The derivative is y'=1/x so it is never 0 and always positive.

You can also look at it as:

n=ln oo
e^n=oo
Therefore, n must be large.

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