Answer
Foci: $( 0, \pm 2 )$
Vertices : $( 0,\pm 5/2)$
Work Step by Step
$100x^2+36y^2=225$
Rewrite as $\frac{x^2}{(3/2)^2}+\frac{y^2}{(5/2)^2}=1$
$c^2=a^2-b^2=4$ $c=2$
Foci: $( 0, \pm 2 )$
Vertices : $( 0,\pm 5/2)$
Multivariable Calculus, 7th Edition
by Stewart, James
Published by
Brooks Cole
ISBN 10:
0-53849-787-4
ISBN 13:
978-0-53849-787-9
Chapter 10 - Parametric Equations and Polar Coordinates - 10.5 Exercises - Page 700: 14
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