Let (-1, 3) be an ordered pair on the terminal side of the angle θ (in standard position). a. Draw a picture of the angle in the circle and find the radius of the circle. b. Find the exact value of cos θ and csc θ. Leave your answers in reduced radical form. c. Notice that cos θ does not just equal the x-coordinate of the point. Why not?
Added by Stephanie M.
Step 1
Step 1: Draw a picture of the angle in the circle and find the radius of the circle. Show more…
Show all steps
Close
Your feedback will help us improve your experience
Joseph David and 93 other Calculus 1 / AB educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Khushbu R.
About Circular Functions
Suman Saurav T.
a) Determine the coordinates of all points where the line represented by $y=-3 x$ intersects the unit circle. Give your answers as exact values in simplest form. b) If one of the points is labelled $\mathrm{P}(\theta+\pi)$ draw a diagram and show at least two values for $\theta .$ Explain what $\theta$ represents.
Trigonometry and the Unit Circle
The Unit Circle
Recommended Textbooks
Calculus: Early Transcendentals
Thomas Calculus
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD