Sine Function - Final Project
Objectives:
1. determine the relationship of the angle measure to the lengths of the side of the triangle and the sine curve;
2. evaluate sine function at angles on the unit circle
Pre-requisite skill:
1. define trigonometric functions
Instruction:
1. Move the angle slider and investigate what happens to the triangle and the sine curve
Questions for Discussions:
1. As the value of increases, what happens to the value of the hypotenuse? lengths of the legs of the triangle?
2. What can you say about the values of sin if measures 0 to 180? 181 to 359? How about 360? What if the angle measure is negative?
3. What is the minimum and maximum values of sin ?
4. What is the relationship of the angle measure to the sine curve?
5. Do you think the values of sine functions will be the same if the radius is not equal to 1? Why or why not?
6. Why do you think the period sine curve is 2?
7. Why do we have the same y-coordinates for points C and E?
Prepared by:
NEDIE B. SEVILLA
ALVIC M. RAMIREZ
Buga NHS
Applet inspired by StudyForce.com https://www.youtube.com/watch?v=TBx2GLQB7Q0