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3 In right triangle ABC, mZA = 30° and mzB = 90°. Which of the following are true? I. sin(A)=sin(C) II. sin(A) = cos(C) III. cos(A) = cos(C) IV. cos(A)=sin(C) O A. I and II B. II and IV C. I and III ○ D. III and IV

3 In right triangle ABC, mZA = 30° and mzB = 90°. Which of the following are true? I. sin(A)=sin(C) II. sin(A) = cos(C) III. cos(A) = cos(C) IV. cos(A)=sin(C) O A. I and II B. II and IV C. I and III ○ D. III and IV

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 20E
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3 In right triangle ABC, mZA = 30° and mzB = 90°. Which of the following are true? I. sin(A)=sin(C) II. sin(A) = cos(C) III. cos(A) = cos(C) IV. cos(A)=sin(C) O A. I and II B. II and IV C. I and III ○ D. III and IV
Transcribed Image Text:3 In right triangle ABC, mZA = 30° and mzB = 90°. Which of the following are true? I. sin(A)=sin(C) II. sin(A) = cos(C) III. cos(A) = cos(C) IV. cos(A)=sin(C) O A. I and II B. II and IV C. I and III ○ D. III and IV
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