Multivariable Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 0-53849-787-4
ISBN 13: 978-0-53849-787-9

Chapter 10 - Parametric Equations and Polar Coordinates - 10.3 Exercises - Page 687: 18

Answer

This polar equation describes a line with slope $\sqrt 3$ that passes through $(0,0)$.

Work Step by Step

$\theta = \pi/3$ $tan (\theta) = tan (\pi /3)$ $tan(\theta) = \sqrt 3$ - Remember: $tan(\theta) = \frac y x$ $\frac y x = \sqrt 3$ $y = \sqrt 3 x$ - This Cartesian equation follows the pattern for lines: $y = ax + b$ In this case: $a = \sqrt 3$ and $b = 0$. Since $b =0$, the lines passes through (0,0).
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