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Mathematics 4 Online
OpenStudy (rainbow_dash):

Find the exact value of cos(pi)

OpenStudy (rainbow_dash):

i just suck at trig

OpenStudy (anonymous):

-1

OpenStudy (anonymous):

suggestion- memorize the unit circle or at least cos(0) =1 sin(0)= 0

OpenStudy (rainbow_dash):

okok..i don't think i'll need to memorize it because i'll never use this again in 3 days :3 thanks for the help htough, i really appreciate it! :)

OpenStudy (anonymous):

no trust me, you will use it in the future

OpenStudy (anonymous):

alot

OpenStudy (rainbow_dash):

:( how much is a lot?

OpenStudy (anonymous):

a lottttttt

OpenStudy (rainbow_dash):

:/

OpenStudy (anonymous):

Cosine of pi is -1

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