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 2 years ago
what is the sine of 390 in fraction form and how would i find out how to do this on my TI84 graphing calculator?
 2 years ago
what is the sine of 390 in fraction form and how would i find out how to do this on my TI84 graphing calculator?

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Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Make sure the mode is set to degrees and not radians. Enter sin(390 to find the decimal form. Then, press math and select >Frac. Press enter and you have your fraction

thestudentinneed
 2 years ago
Best ResponseYou've already chosen the best response.0Thank you so much! helped a lot!

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1Tip: Don't depend on your calculator

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1It /will/ screw you over.

thestudentinneed
 2 years ago
Best ResponseYou've already chosen the best response.0Yeah i have the basic points of the unit circle memorized but thats not one of them

Grazes
 2 years ago
Best ResponseYou've already chosen the best response.1If you can, sketch theta. Remember that sin(k)=y/r, cos(k)=x/r, and tan(k)=y/x

thestudentinneed
 2 years ago
Best ResponseYou've already chosen the best response.0Oh okay, haven't tried that

thestudentinneed
 2 years ago
Best ResponseYou've already chosen the best response.0just to make sure I'm correct its (cos,sin) for how the ordered pairs on a nit circle are ordered right?
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