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Student Support Forum: 'Complex Expand off by a factor of -1' topicStudent Support Forum > General > Archives > "Complex Expand off by a factor of -1"

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Charles S
02/21/13 2:49pm

I am using Mathematica 8.0 and when I enter
ComplexExpand[(E^(I*y) - E^(-I*y))/2*I] I get the answer -Sin[y] instead of Sin[y].

This appears to be incorrect, please advise thanks!

Charles

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Subject (listing for 'Complex Expand off by a factor of -1')
Author Date Posted
Complex Expand off by a factor of -1 Charles S 02/21/13 2:49pm
Re: Complex Expand off by a factor of -1 Forum Modera... 02/21/13 7:25pm
Re: Re: Complex Expand off by a factor of -1 Charles S 02/22/13 03:13am
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