Identify and graph the following curves. a) r2 = cos(2θ) b) r2 = √3 + 2 sin θ c) r = 3 − 3 sin θ d) r = 5 sin θ e) r = 3 sin(4θ)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 40E
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Identify and graph the following curves.

a)  r2 = cos(2θ)

b)  r2 = √3 + 2 sin θ

c)  r = 3 − 3 sin θ

d)  r = 5 sin θ

e)  r = 3 sin(4θ)

Expert Solution
Step 1

Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If you want remaining sub-parts to be solved, then please resubmit the whole question and specify those sub-parts you want us to solve.

(a)

Take root under on both the sides of the equation.

The shape of the curve is lemniscates.

Calculus homework question answer, step 1, image 1

Calculus homework question answer, step 1, image 2

Step 2

(b)

 Again, take root under on both the sides of the equation.

The shape of the curve is cardioids.

Calculus homework question answer, step 2, image 1

Calculus homework question answer, step 2, image 2

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