Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Question
11°C
长安
新版
Course X
Reson X
Answe X
Not go X
awd1 x
https://preview.redd.it/awd11m866ga51.png?width=4032&format=png&auto=webp&v=enabled&s=a6297aa4bbe63365f1ac20075edf601ee6096a3e
■
New AX
=
FMovi
enil ono miqyd yd asergeb mijo
16. In the triangle shown a = 9 cm, b = 18 cm, and
c = 25 cm. Define a, b, and c as variables, and
then:
Q Search
HuraV X
(a) Calculate the angle a (in degrees) by substi-
tuting the variables in the Law of Cosines.
a² + b² - 2ab cosy)
(Law of Cosines: c²
(b) Calculate the angles ß and y (in
using the Law of Sines. Inio
onsig
(c) Check that the sum of the angles is 180°.
▸ (103)
degrees)
×
Reddit X
M Boîte X
Sci-Hu X
AS
โด
BB
a
mo od ni
prope X
{}
sons a
с
Y
C
b
maisa
ENG
D
1 7 0 5 +
O
2:06 PM
3/24/2023
expand button
Transcribed Image Text:11°C 长安 新版 Course X Reson X Answe X Not go X awd1 x https://preview.redd.it/awd11m866ga51.png?width=4032&format=png&auto=webp&v=enabled&s=a6297aa4bbe63365f1ac20075edf601ee6096a3e ■ New AX = FMovi enil ono miqyd yd asergeb mijo 16. In the triangle shown a = 9 cm, b = 18 cm, and c = 25 cm. Define a, b, and c as variables, and then: Q Search HuraV X (a) Calculate the angle a (in degrees) by substi- tuting the variables in the Law of Cosines. a² + b² - 2ab cosy) (Law of Cosines: c² (b) Calculate the angles ß and y (in using the Law of Sines. Inio onsig (c) Check that the sum of the angles is 180°. ▸ (103) degrees) × Reddit X M Boîte X Sci-Hu X AS โด BB a mo od ni prope X {} sons a с Y C b maisa ENG D 1 7 0 5 + O 2:06 PM 3/24/2023
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