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mathematica gives strange result

• To: mathgroup at smc.vnet.net
• Subject: [mg111245] mathematica gives strange result
• From: SNC <snc at irc.pl>
• Date: Sun, 25 Jul 2010 01:57:23 -0400 (EDT)

Im trying to find a solution to equation DSolve[-y''[x] +
((Csc[x])^2)*y[x] == y[x]/4, y[x], x] but mathematica gives me some
strange result with expresion (-1+cos^2(x))^(1/4) in it. Why is that
and how should i interpretate this?