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Mathematics 7 Online
OpenStudy (anonymous):

help! will give medal for whoever helps me out with this... "find the value of function sin 9pi/7"

OpenStudy (anonymous):

OpenStudy (anonymous):

check the answer

OpenStudy (anonymous):

i mean making it into an actual number. (without sin, fraction, and pi symbol)

OpenStudy (anonymous):

Oh sin 2pi/7 has an irrational value check via calculator

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