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March 2nd, 2014, 01:43 AM  #1 
Newbie Joined: Mar 2014 Posts: 2 Thanks: 0  Real part of complex?
Hello! Can someone help with this complex function? f(x) =(e^3+i2x)/ix how can I get the real part of the f(x)? thanks a lot 
March 2nd, 2014, 05:23 AM  #2 
Senior Member Joined: May 2011 Posts: 501 Thanks: 5  Re: Real part of complex?
It's in front of you. Just divide by ix.

March 2nd, 2014, 10:16 AM  #3 
Newbie Joined: Mar 2014 Posts: 2 Thanks: 0  Re: Real part of complex?
the function should be f(x) =(e^(3+i2x))/ix typo. can you solve it? thanks. 
March 2nd, 2014, 12:46 PM  #4  
Global Moderator Joined: May 2007 Posts: 6,610 Thanks: 616  Re: Real part of complex? Quote:
f(x) =(e^(3+i2x))/ix = ie^3(cos2x + isin2x)/x = e^3(sin2x/x) ie^3(cos2x/x)  

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