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OpenStudy (anonymous):
if A + B + C = 180 then sin^2A - sin^2b + sin^2 C = ?
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OpenStudy (experimentx):
I think we did this yesterday
OpenStudy (anonymous):
but i was littele confused
OpenStudy (anonymous):
when i revined it
OpenStudy (experimentx):
where were you confused??
OpenStudy (anonymous):
can i try?
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OpenStudy (anonymous):
yup
OpenStudy (anonymous):
experiment?
OpenStudy (experimentx):
sure ..
OpenStudy (anonymous):
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