Posted by Jossie on Thursday, March 21, 2013 at 4:13am.
just plug the numbers into your favorite calculator. What's the trouble?
or, reduce to
(sin 50)(tan 60) / (cos 180)(tan 50)(sin 40)
= (cos 40)(cot 30) / -(cot 40)(sin 40)
= -cot 30
= -√3
Huh. Strange font messup
that's -√3
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