MAT334-2018F > End of Semester Bonus--sample problem for FE

FE Sample--Problem 1

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Ende Jin:

--- Quote from: Victor Ivrii on November 30, 2018, 03:32:09 AM ---Ende, what this $n$ soaring in the air means. Probably you forgot parenthesis.

Also $|z|=R$ is definitely overcomplicated since geometric series obviously diverges at each such point

--- End quote ---

Fixed.
The point is, I cannot see why "geometric series obviously diverges at each such point".

Victor Ivrii:
Geometric series $\sum_{n=0}^\infty  z^n $ diverges as $|z|=1$ since $z^n\not\to 0$

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