Use a calculator to find ? to the nearest tenth of a degree, if 0° < ? < 360° and cos( ?)=-0.7620 with ? in Qlll ?=
Use a calculator to find ? to the nearest tenth of a degree, if 0° < ? < 360° and cos( ?)=-0.7620 with ? in Qlll ?=
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter9: Real Numbers And Right Triangles
Section9.8: The Sine And Cosine Ratios
Problem 1C
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Question
Use a calculator to find ? to the nearest tenth of a degree, if 0° < ? < 360° and
cos( ?)=-0.7620 with ? in Qlll
?=
Expert Solution
Step 1
Given:
cos( x )=-0.7620
0° < x < 360°
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