Answer
The graph of:
$x=t~cos~t$
$y=t~sin~t$
Work Step by Step
Notice that $x=a~cos~t$ and $y=a~sin~t$ would give us a circle of raidus $a$. Now, make $a=t$. The radius of the "circle" increases as $t$ increaes.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 8 - Section 8.4 - Plane Curves and Parametric Equations - 8.4 Exercises - Page 619: 59
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