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OpenStudy (anonymous):
solve using law of cosines: a=14, c=18, B=48
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OpenStudy (anonymous):
b^2 = a^2 + c^2 -2ac cos(48)
OpenStudy (lalaly):
how is the angle 48?
OpenStudy (anonymous):
therefore: b^2 = 14^2 + 18^2 - 2*14*18*cos(48)
OpenStudy (anonymous):
Why not Lalaly? He means degrees
OpenStudy (anonymous):
the angle is 48 degrees, my apologies
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OpenStudy (lalaly):
ok
OpenStudy (anonymous):
doctorwho, we gave you the equation, solve it now
OpenStudy (anonymous):
i need the rest, i can do it, i just dont have the time, its my last problem and is do in, well... shortly. please finish it?
OpenStudy (anonymous):
come on guys, just a little farther please!
OpenStudy (anonymous):
13.52
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