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Mathematics 20 Online
OpenStudy (anonymous):

acosA+bcosB+ccosC=2asinBsinC

OpenStudy (anonymous):

using laws of sines and cosines

OpenStudy (unklerhaukus):

It might help to draw a triangle

OpenStudy (anonymous):

Yah

OpenStudy (anonymous):

I agree

OpenStudy (anonymous):

it didn't work

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