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Mathematics 16 Online
OpenStudy (anonymous):

how are special right triangle identities used to find coordinatepoints around the unit circle? how would i fine the sin, cos and tan values for 315 degrees

OpenStudy (johnweldon1993):

|dw:1407337369514:dw|

OpenStudy (anonymous):

im taking notes right now lol im writing this stuff down.

OpenStudy (johnweldon1993):

Haha well does it make sense?

OpenStudy (anonymous):

yes actually my teacher tried to explain it to me but using words not an actual image. with the image i can see where we are getting the info from

OpenStudy (johnweldon1993):

Right! Sometimes visuals really help So here we'll do 1 more example too... Finding sin, cos and tan of 240 degrees

OpenStudy (johnweldon1993):

So we start with the simple unit circle |dw:1407338085501:dw| as we can see, each section is in an interval of 90 degrees

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