Now calculate the second part of the polar coordinate.  What is the distance from the origin to coordinates ( 5, -5 ) to 2 significant digits?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.4: Complex Numbers
Problem 51E
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Now calculate the second part of the polar coordinate.  What is the distance from the origin to coordinates ( 5, -5 ) to 2 significant digits?

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(You have several options for calculating the distance.  Since the X and Y coordinates are two sides of a triangle and the distance is the hypotenuse, you can use Pythagorean theory:  A2+B2=C2.   Or in this case, X2+Y2=D2.

Or, if you prefer using trigonometry,  You can use either sine or cosine to calculate the hypotenuse. I KNOW the angle is 45 deg from a previous problem)

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Transcribed Image Text:90° 120° 60° 150° 30° 180° 0° 210° 330° 240° 300° 270°
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