1.) Find polar coordinates (r,8) for the point P that has Cartesian coordinates (x, y) = (5,-5) such that r≥ 0 and 0 ≤ 0 ≤ 2π. Show all steps. You may leave the angle in terms of an inverse trigonometric function.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
Problem 64E
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1.)
Find polar coordinates (r, 0) for the point P that has Cartesian coordinates
(x, y) = (5,-5) such that r≥ 0 and 0 ≤ 0 ≤ 2π. Show all steps. You may leave the
angle in terms of an inverse trigonometric function.
Transcribed Image Text:1.) Find polar coordinates (r, 0) for the point P that has Cartesian coordinates (x, y) = (5,-5) such that r≥ 0 and 0 ≤ 0 ≤ 2π. Show all steps. You may leave the angle in terms of an inverse trigonometric function.
xample
epresent the point with Cartesian coordinates (1,-1) in terms of polar coordinates.
X = 1
y = -1
So, (1,-1) in
ܙ
F
F
r² = x² + y²
(²³= (1) ³² + (-1) ²
(52, 2π + ten²¹ (-1))
r² = 2
r=√√2
-1
in Quadent II
2-7
√
or
tan 0 = 1/2
X
fand = =
tad = -1
8 = tan (-1) in
0 = 2π + tan¹ (-1)
Carterian Coordinates
=
7T
-X
or O=-T
is
in Polar Coordinates.
4.
(1₁-1) or (√2, 247) or (52,- =7)
Transcribed Image Text:xample epresent the point with Cartesian coordinates (1,-1) in terms of polar coordinates. X = 1 y = -1 So, (1,-1) in ܙ F F r² = x² + y² (²³= (1) ³² + (-1) ² (52, 2π + ten²¹ (-1)) r² = 2 r=√√2 -1 in Quadent II 2-7 √ or tan 0 = 1/2 X fand = = tad = -1 8 = tan (-1) in 0 = 2π + tan¹ (-1) Carterian Coordinates = 7T -X or O=-T is in Polar Coordinates. 4. (1₁-1) or (√2, 247) or (52,- =7)
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