AP Notes, Outlines, Study Guides, Vocabulary, Practice Exams and more!

Trigonometric Functions Using Coordinate Systems

Trigonometric Functions Using Coordinate Systems:

2trigfu1

Angle q is in standard position if its vertex is at the origin and its initial side is on the x-axis.

"q is in Q1 " means that angle q is in standard position and its terminal side is in quadrant 1.

If the terminal side is on an axis not in a quadrant, this angle is called a quadrantal angle or a between quadrant angle.

If q is in Q1 and it is an acute angle, then the previous trigonometric functions can be applied.

Let P = (x , y) be any point on the terminal side of q , and the distance r from the origin to point P is:

2trigfu2

2trigfu3

 

 

Subject: 
Trigonometry
Subject X2: 
Trigonometry

Need Help?

We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.

For general help, questions, and suggestions, try our dedicated support forums.

If you need to contact the Course-Notes.Org web experience team, please use our contact form.

Need Notes?

While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!