4. Which of the following expressions gives the measure of B? A. cos-1 (152+252-112 2(15)(25) B. cos-1 (152+11²-25² 25 11 C. cos-1 2(15)(11) (252+112-152) 2(25)(11) D. cos-1 (112+252-15² 2(15)(25) B 15
4. Which of the following expressions gives the measure of B? A. cos-1 (152+252-112 2(15)(25) B. cos-1 (152+11²-25² 25 11 C. cos-1 2(15)(11) (252+112-152) 2(25)(11) D. cos-1 (112+252-15² 2(15)(25) B 15
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
A answer the following
Transcribed Image Text:4. Which of the following expressions gives the measure of ZB?
A. cos-¹
(15²+25²-11²
2(15)(25)
152+112-252)
2(15)(11)
B. cos 1
25
11
C. cos-1
(252+11²-152
D. cos-1
2(25) (11)
11²+25²-152
2(15)(25)
B
15
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