Y by Adventure10, Mango247
Consider a meromorphic function
so that
Prove that
is a rational function.
Since
has a pole at infinity then is a polynomial, but I can't conclude that
is rational, how to proceed?

![$|f(z)|\xrightarrow[|z|\to\infty]{}\infty.$](http://latex.artofproblemsolving.com/e/5/8/e58ca320e7e5c0f372da23f1d836955a30573087.png)

Since


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