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## Homework Statement

the curve x^3+y^3=3xy is called the folium of descartes.

Show that x+y=3/((x/Y)-1+(y/x)), and hence that x+y = -1 is an oblique asymptote.

## Homework Equations

## The Attempt at a Solution

I have done the first part of the question, though i am just having trouble showing that it is an oblique asymptote. I am trying to get just x on the denominator so that as x approaches infinity, the fraction will approach 0 and rearrange from there. No luck so far.

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