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9 Use tan 8° = a b с sin 1- cos cos sin @ cos8 cos² 0 ≤0 and cos²0° + sin² 0 = 1 to establish the following. cond tane sin = 1+ cos 0 + tano" cos 1-sin

9 Use tan 8° = a b с sin 1- cos cos sin @ cos8 cos² 0 ≤0 and cos²0° + sin² 0 = 1 to establish the following. cond tane sin = 1+ cos 0 + tano" cos 1-sin

Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
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Answer questions 9b,9c,9d, and 10a,10b,10c,10d

P 9 Use tan sin, cos² 0 ≤0 and cos²0° + sin² 0° = 1 to establish the following. cos a b С 1 sin 8 sin¹9 1- cos 9¹ 1 + tane" = cos 6 tan sin =1+ 1-cost con 8 10 Solve the following equations for 0, giving all the roots in the interval 0° < 0 < 360° correct to the nearest 0.1. 4 sin² 0° - 1 = 0 a 1 tanசி" 1-cost" sin = 1+ cos 0 cos 1-sin 8° b sin²0° + 2cos² 0º = 2 csin² 0° - 5 cos² 0° + 2 = 4 sin 0° d 4 sin²0° cos 0° = tan²0°
Transcribed Image Text:P 9 Use tan sin, cos² 0 ≤0 and cos²0° + sin² 0° = 1 to establish the following. cos a b С 1 sin 8 sin¹9 1- cos 9¹ 1 + tane" = cos 6 tan sin =1+ 1-cost con 8 10 Solve the following equations for 0, giving all the roots in the interval 0° < 0 < 360° correct to the nearest 0.1. 4 sin² 0° - 1 = 0 a 1 tanசி" 1-cost" sin = 1+ cos 0 cos 1-sin 8° b sin²0° + 2cos² 0º = 2 csin² 0° - 5 cos² 0° + 2 = 4 sin 0° d 4 sin²0° cos 0° = tan²0°
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