Solution Found!
Solution: Use reference triangles in an appropriate
Chapter 3, Problem 5E(choose chapter or problem)
Use reference triangles in an appropriate quadrant, as in Example 1, to find the angles in Exercises 1–8.
a. \(\cos ^{-1}\left(\frac{1}{2}\right)\) b. \(\cos ^{-1}\left(\frac{-1}{\sqrt{2}}\right)\) c. \(\cos ^{-1}\left(\frac{\sqrt{3}}{2}\right)\)
Equation Transcription:
Text Transcription:
cos^-1
cos^-1 (-1/sqrt 2)
cos^-1 (sqrt 3 /2 )
Questions & Answers
QUESTION:
Use reference triangles in an appropriate quadrant, as in Example 1, to find the angles in Exercises 1–8.
a. \(\cos ^{-1}\left(\frac{1}{2}\right)\) b. \(\cos ^{-1}\left(\frac{-1}{\sqrt{2}}\right)\) c. \(\cos ^{-1}\left(\frac{\sqrt{3}}{2}\right)\)
Equation Transcription:
Text Transcription:
cos^-1
cos^-1 (-1/sqrt 2)
cos^-1 (sqrt 3 /2 )
ANSWER:
Solution:
Step 1 of 4:
In this problem, we have to find the angle of given triangle.