a. Find the slope of the folium of Descartes x 3 + y 3 - 9xy =

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a. Find the slope of the folium of Descartes x3 + y3 - 9xy = 0 at the points (4, 2) and (2, 4).


b. At what point other than the origin does the folium have a horizontal tangent?


c. Find the coordinates of the point A in Figure 3.28 where the folium has a vertical tangent.


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Thomas Calculus Early Transcendentals

ISBN: 9780321884077

13th Edition

Authors: Joel R Hass, Christopher E Heil, Maurice D Weir

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