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Mathematics 19 Online
OpenStudy (august899):

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?

OpenStudy (freckles):

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

OpenStudy (freckles):

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

OpenStudy (freckles):

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

OpenStudy (freckles):

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

OpenStudy (august899):

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

OpenStudy (freckles):

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

OpenStudy (freckles):

Can you following my directions that came after that question?

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