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For Exercises 27–30, determine whether the tests for symmetry in Table 7-2 detect symmetry with respect t a. The polar axis. Replace (r, 0) by (r, - 0). b. The line 0 = . Replace (r, 0) by (r, T – 0). 2° c. The pole. Replace (r, 0) by (-r, 0). Otherwise, indicate that the test is inconclusive. 27. r = -4cos20 28. r = 12 29. r = -8cos 0 30. r = 8 sin 0

For Exercises 27–30, determine whether the tests for symmetry in Table 7-2 detect symmetry with respect t a. The polar axis. Replace (r, 0) by (r, - 0). b. The line 0 = . Replace (r, 0) by (r, T – 0). 2° c. The pole. Replace (r, 0) by (-r, 0). Otherwise, indicate that the test is inconclusive. 27. r = -4cos20 28. r = 12 29. r = -8cos 0 30. r = 8 sin 0

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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For Exercises 27–30, determine whether the tests for symmetry in Table 7-2 detect symmetry with respect t a. The polar axis. Replace (r, 0) by (r, - 0). b. The line 0 = . Replace (r, 0) by (r, T – 0). 2° c. The pole. Replace (r, 0) by (-r, 0). Otherwise, indicate that the test is inconclusive. 27. r = -4cos20 28. r = 12 29. r = -8cos 0 30. r = 8 sin 0
Transcribed Image Text:For Exercises 27–30, determine whether the tests for symmetry in Table 7-2 detect symmetry with respect t a. The polar axis. Replace (r, 0) by (r, - 0). b. The line 0 = . Replace (r, 0) by (r, T – 0). 2° c. The pole. Replace (r, 0) by (-r, 0). Otherwise, indicate that the test is inconclusive. 27. r = -4cos20 28. r = 12 29. r = -8cos 0 30. r = 8 sin 0
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