1 / 8

7.7 Trig Functions of Real Numbers

7.7 Trig Functions of Real Numbers. Ex 1) Find the rectangular coordinates of P ( t ). y. P ( t ) = ( x , y ) on unit circle. a. P (0) b. c. ( x , y ). angle in radians. x. t. cos t. sin t. ( 0, –1 ). ( 1 , 0).

graham-acosta
Download Presentation

7.7 Trig Functions of Real Numbers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. 7.7 Trig Functions of Real Numbers

  2. Ex 1) Find the rectangular coordinates of P(t) y P(t) = (x, y) on unit circle a. P(0) b. c. (x, y) angle in radians x t cost sin t (0, –1) (1, 0)

  3. Ex 2) Determine which quadrant contains the given point P(t). a. b. P(12) radians ≈ 6.28 2π π 3.14 ≈ π ≈ 12.56 4π 9.42 ≈ 3π Q II Q IV

  4. Try one on your whiteboard! Write your own non-standard angle so that the point P(your angle in radians) is in Quadrant III. (like the ones we just did in Example 2) Then, give your angle to a partner so that they can confirm that it is in Quadrant III.

  5. Remember that each point (x, y) on the unit circle is (cost, sin t) (since r = 1 on the unit circle)

  6. Ex 3) Determine whether the following is true or false. ? ? ?

  7. Use whiteboards Two Truths & a Lie Two of the following statements are true and one is a lie. Find the “lie” and fix it to make it a truth. A) B) C)

  8. Homework #719 Pg. 438 1 – 43 odd

More Related