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(Round answer to the nearest tenth) 19² = 21² + 25² - 2(21)(25) cos C A. 36.5 B. 36.6 C. 47.7 D. 47.8

(Round answer to the nearest tenth) 19² = 21² + 25² - 2(21)(25) cos C A. 36.5 B. 36.6 C. 47.7 D. 47.8

Trigonometry (11th Edition)
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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(Round answer to the nearest tenth) 19² = 21² +25² - 2(21)(25) cos C A. 36.5 B. 36.6 C. 47.7 D. 47.8
Transcribed Image Text:(Round answer to the nearest tenth) 19² = 21² +25² - 2(21)(25) cos C A. 36.5 B. 36.6 C. 47.7 D. 47.8
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