In right triangle ABC, mZA = 30° and mZB = 90°. Which of the following are true? 1. sin(A) = sin(C) II. sin(A) = cos(C) III. cos(A) = cos(C) IV. cos(A) = sin(C) OA. III and IV OB. II and IV I and II O C. OD. I and III

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.1: Angles
Problem 29E
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In right triangle ABC, mZA = 30° and mZB = 90°. Which of the following are true?
1. sin(A) = sin(C)
II. sin(A) = cos(C)
III. cos(A) = cos(C)
IV. cos(A) = sin(C)
O A. III and IV
OB. II and IV
OC. I and II
OD.
I and III
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Transcribed Image Text:In right triangle ABC, mZA = 30° and mZB = 90°. Which of the following are true? 1. sin(A) = sin(C) II. sin(A) = cos(C) III. cos(A) = cos(C) IV. cos(A) = sin(C) O A. III and IV OB. II and IV OC. I and II OD. I and III Reset Next
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