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Q4. Find the exact value of (you can do this by sketching the angle and using reference angle) (=) a.cos b. cos Considering your answers in parts a) and b) what is the exact value of cos¬1 Q5. Find the exact value of the expressions without using a calculator. a. sin-1 (-) b. cos-1 c. sin-1(3)=

Q4. Find the exact value of (you can do this by sketching the angle and using reference angle) (=) a.cos b. cos Considering your answers in parts a) and b) what is the exact value of cos¬1 Q5. Find the exact value of the expressions without using a calculator. a. sin-1 (-) b. cos-1 c. sin-1(3)=

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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**Q4. Find the exact value of (you can do this by sketching the angle and using reference angle)** a. \(\cos \left( \frac{5\pi}{6} \right)\) b. \(\cos \left( \frac{7\pi}{6} \right)\) Considering your answers in parts a) and b), what is the exact value of \(\cos^{-1} \left(-\frac{\sqrt{3}}{2}\right)\). --- **Q5. Find the exact value of the expressions without using a calculator.** a. \(\sin^{-1} \left( -\frac{\sqrt{3}}{2} \right)=\) b. \(\cos^{-1} \left( -\frac{1}{2} \right)=\) c. \(\sin^{-1}(3)=\)
Transcribed Image Text:**Q4. Find the exact value of (you can do this by sketching the angle and using reference angle)** a. \(\cos \left( \frac{5\pi}{6} \right)\) b. \(\cos \left( \frac{7\pi}{6} \right)\) Considering your answers in parts a) and b), what is the exact value of \(\cos^{-1} \left(-\frac{\sqrt{3}}{2}\right)\). --- **Q5. Find the exact value of the expressions without using a calculator.** a. \(\sin^{-1} \left( -\frac{\sqrt{3}}{2} \right)=\) b. \(\cos^{-1} \left( -\frac{1}{2} \right)=\) c. \(\sin^{-1}(3)=\)
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