• Like
Trig Ratios Of Obtuse Angles
Upcoming SlideShare
Loading in...5
×

Trig Ratios Of Obtuse Angles

  • 10,609 views
Uploaded on

 

More in: Technology , Business
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
  • Thank you!
    Are you sure you want to
    Your message goes here
    Be the first to like this
No Downloads

Views

Total Views
10,609
On Slideshare
0
From Embeds
0
Number of Embeds
1

Actions

Shares
Downloads
33
Comments
1
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. 1
  • 2. Trigonometric Ratios of an Obtuse Angle Definition: An angle is in standard position if • its first side (initial side) is a ray from the origin along the positive x­axis • its second side (terminal side) is any ray from the origin • the angle is measured from the initial to the terminal side in a counterclockwise direction ] Angle is in standard position. 2
  • 3. 3
  • 4. 4
  • 5. 5
  • 6. Use the coordinate definition of the trigonometric ratios  to find sin , cos and tan if angle is in standard position  • P(3, 4) is on • P(-3, 4) is on its terminal arm its terminal arm 6
  • 7. Θ  sinΘ  cosΘ   tanΘ   0 30 0 150   0 65   0 115   0 89   0 91   7
  • 8. • Find the size of each angle (nearest tenth) • State acute and obtuse angles where possible 1)  sin = 0.42 2)  cos = ­0.3 3)  tan = 1.5 8
  • 9. Assignment: Exercise 18 9