24. Which of the following polar curves is a cardioid? A. r= cos () B. r= 2+3sin® C. r = 3– 20ose D.r= cos () 25. What is the area of one of the petals of the rose curve r= 2cos(28)? /4 /4 A. --/4 - cos(20)de B. 8 . cos (20) de /4 4 cos"(20) do D. 2 / cos"(20) d C. 4 -=/4 -=/4

24. Which of the following polar curves is a cardioid? A. r= cos () B. r= 2+3sin® C. r = 3– 20ose D.r= cos () 25. What is the area of one of the petals of the rose curve r= 2cos(28)? /4 /4 A. --/4 - cos(20)de B. 8 . cos (20) de /4 4 cos"(20) do D. 2 / cos"(20) d C. 4 -=/4 -=/4

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.2: Graphs Of Equations

Problem 51E

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Question

24. Which of the folowing polar curves is a cardioid?
A. r = cos? () B. r= 2+3sin0 C. r = 3 – 2cos0 D. r= cos ()
25. What is the area of one of the petals of the rose curver = 2 cos(20)?
- / cos"(20)d0
8/, cos"(20) do
A.
В. 8
-x/4
-x/4
지/4
4 cos"(20) do D. 2/ cos"(20) do
r/4
C.
J-x/4
*/4

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