Question

Explain how the unit circle can be used to find sin θ,cosθ,and tan θ for any central angle θ (positive or negative).What are the values of these functions in general?

Answer 1

Do you know what the center and radius is of the unit circle is?

Answer 2

If so try drawing that circle on the cartesian plane, and then draw a triangle with hyp beginning at (0,0) and ending at some point (x,y) in the 1st quadrant

Answer 3

Then we will labeled the central angle contained in that triangle as theta

Answer 4

and then you can find cos(theta), sin(theta), tan(theta), and so on...

Answer 5

No,this is a question in my homework and that's all it says.

Answer 6

A unit circle has center (0,0) and radius 1.

Answer 7

Can you following my directions that came after that question?