18. tan 0° + cot 45°? A) 0 B) VZ C) 1 D) 2 19. V3 sin 60°? A) B)를 c) D) V3 20. sec 60° cos3 90° + sin²45° csc 90°? B) c) A) 1 D) 0
18. tan 0° + cot 45°? A) 0 B) VZ C) 1 D) 2 19. V3 sin 60°? A) B)를 c) D) V3 20. sec 60° cos3 90° + sin²45° csc 90°? B) c) A) 1 D) 0
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°.
Related questions
Question
please answer 18, 19, 20 i will upvote
Transcribed Image Text:18. tan 0° + cot 45°?
A) 0
B) VZ
C) 1
D) 2
19. V3 sin 60°?
A)
B)를
c)
D) V3
20. sec 60° cos3 90° + sin²45° csc 90°?
B)
c)
A) 1
D) 0
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