Which of the following is TRUE? A. 1- sin ? = cos? cos 2 B. 1- cos? 20 = sin² 20 C. 1 – tan? = sec? - D. 1- cot? 20 = csc2 20 O A only O C only O C and D O A and B
Which of the following is TRUE? A. 1- sin ? = cos? cos 2 B. 1- cos? 20 = sin² 20 C. 1 – tan? = sec? - D. 1- cot? 20 = csc2 20 O A only O C only O C and D O A and B
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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Question
Transcribed Image Text:Which of the following is TRUE?
A. 1 – sin? = cos²
2 0
2
2
B. 1- cos? 20 = sin² 20
C. 1 – tan² , = sec? ,
2
D. 1- cot? 20 = csc² 20
O A only
o Conly
C and D
O A and B
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