Re: How Expand?
- To: mathgroup at smc.vnet.net
- Subject: [mg127824] Re: How Expand?
- From: Costa Bravo <q13a27tt at aol.com>
- Date: Sat, 25 Aug 2012 04:23:40 -0400 (EDT)
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U¿ytkownik news write: > > How can I expand the following : > > [ 1 + cos(x) + i sin(x) ]^3 > > to obtain; > > 8 cos(x/2)^3 [cos(3x/2)+ i sin(3x/2)] > using the correct code of Mathematica (1 + Cos[x] + I Sin[x])^3 // Expand // TrigReduce // Simplify -- Costa