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OpenStudy (anonymous):
I've just done this problem, (trig) http://oi39.tinypic.com/bfqbo2.jpg and I know the answer is wrong.. Where did I mess up? And what is the right answer..?
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OpenStudy (anonymous):
\[\bar {AB}=\frac{ 20 }{ \cos(<ABC) }=\frac{ 20 }{ 5/13}=52\]
OpenStudy (anonymous):
You have made 20x5/13 and the solution is 20x13/5
OpenStudy (anonymous):
Thank you!
OpenStudy (anonymous):
u are welcome
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