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Student Support Forum: 'Trig Reductions in Mathematica' topicStudent Support Forum > General > "Trig Reductions in Mathematica"

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Author Comment/Response
Nasser M. Abbasi
09/05/12 5:26pm

(A Sin (wt) )^3

to first order sine's and cosine's. Doing it by hand it should look something like

a Sin(wt) - b Sin(3wt) + c Sin(wt)
================================

Using which hand generated the above?

When one claims something, they should either show the work, or post a reference (unless the claim is trivially obvious).

Mathematica says

Clear[a,w,t];
term = a Sin[w t]^3;
TrigReduce[term]

Out[24]= 1/4 (3 a Sin[t w]-a Sin[3 t w])

Also, try to use Mathematica notations so it is easier to copy paste from your question. Do not use UPPER case symbols in Mathematica. Use lower case only. Also `wt` is not the same as `w t`. space is very important.



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Subject (listing for 'Trig Reductions in Mathematica')
Author Date Posted
Trig Reductions in Mathematica vadar 09/04/12 8:33pm
Re: Trig Reductions in Mathematica Nasser M. Ab... 09/05/12 5:26pm
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