1i think this involves complex numbers....am i right??
Prove that
\tan(\frac{3\pi}{11})+4\sin(\frac{2\pi}{11})=\sqrt{11}
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4 Answers
3oh no this will be a tedious one if one do by trigno,i have seen this pbm in edudigm and rds.As far as i know this qn cant be solved easily.
1this has been unsolved for such a long time....i hope sir u dont mind me posting a link here-
http://i37.tinypic.com/262qe60.jpg
