University Calculus: Early Transcendentals (3rd Edition)

Published by Pearson
ISBN 10: 0321999584
ISBN 13: 978-0-32199-958-0

Chapter 10 - Section 10.3 - Polar Coordinates - Exercises - Page 577: 5

Answer

$a.\quad(3,0)$ $b.\quad(-3,0)$ $c.\quad(-1,\sqrt{3})$ $d.\quad(1,\sqrt{3})$ $e.\quad(3,0)$ $f.\quad(1,\sqrt{3})$ $g.\quad(-3,0)$ $h.\quad(-1,\sqrt{3})$

Work Step by Step

Polar: $(r,\theta)$ Cartesian: $(r\cos\theta,r\sin\theta)$ $\left[\begin{array}{llllll} & r & \theta & x=r\cos\theta & y=r\sin\theta & (x,y)\\ & & & & & \\ a. & 3 & 0 & 3 & 0 & (3,0)\\ b. & -3 & 0 & -3 & 0 & (-3,0)\\ c. & 2 & 2\pi/3 & -1 & \sqrt{3}/2 & (-1,\sqrt{3}/2)\\ d. & 2 & 7\pi/3 & 1 & \sqrt{3}/2 & (1,\sqrt{3}/2)\\ e. & -3 & \pi & 3 & 0 & (3,0)\\ f. & 2 & \pi/3 & 1 & \sqrt{3}/2 & (1,\sqrt{3}/2)\\ g. & -3 & 2\pi & -3 & 0 & (-3,0)\\ h. & -2 & -\pi/3 & -1 & \sqrt{3}/2 & (-1,\sqrt{3}/2) \end{array}\right]$
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