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find the limit as (x,y) approaches (0,0) of cos(1/(xy))

Calculus
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prove limit as (x,y) approaches (0,0) of cos(1/(xy)) DNE

Nov 12th, 2014

Since xy occurs in denominator, the angle will approach infinity. cosine of the angle can be any number between -1 and 1  and so limit does not exist.

Nov 12th, 2014

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Nov 12th, 2014
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Nov 12th, 2014
Dec 10th, 2016
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