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Mathematics 17 Online
OpenStudy (anonymous):

hi, is anyone online?

OpenStudy (anonymous):

The answer to your y=cos(-7pi/12) is y=

OpenStudy (anonymous):

= ...?

OpenStudy (anonymous):

-square root of 3 / 2

OpenStudy (anonymous):

Think of your unit circle

OpenStudy (anonymous):

lol, i never memorised that stuff :(

OpenStudy (anonymous):

-7pi/12 is 5pi/12

OpenStudy (anonymous):

I recommend that you memorize that to do well in trigonometry and onward. :/

OpenStudy (anonymous):

okay thankss!

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