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Math Help - Complex Number Exponential Differentiation

  1. #1
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    Complex Number Exponential Differentiation

    Very confused on this topic, if possible could someone go through step by step how to do 19b and/or 20a (or b).

    Complex Number Exponential Differentiation-complexd.jpg

    Sorry it won't seem to upload the right way around. Thanks for any help
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  2. #2
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    Re: Complex Number Exponential Differentiation

    Quote Originally Posted by stormerze View Post
    Very confused on this topic, if possible could someone go through step by step how to do 19b and/or 20a (or b). Click image for larger version. 

Name:	complexd.jpg 
Views:	26 
Size:	55.9 KB 
ID:	21657
    Sorry it won't seem to upload the right way around. Thanks for any help
    Please either post a readable attachment or better yet learn to use Latex.
    We cannot help if we cannot read the posting.
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    Re: Complex Number Exponential Differentiation

    Is this viewable?
    Attached Thumbnails Attached Thumbnails Complex Number Exponential Differentiation-complex.jpg  
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    Re: Complex Number Exponential Differentiation

    Quote Originally Posted by stormerze View Post
    Very confused on this topic, if possible could someone go through step by step how to do 19b and/or 20a (or b).

    Click image for larger version. 

Name:	complexd.jpg 
Views:	26 
Size:	55.9 KB 
ID:	21657

    Sorry it won't seem to upload the right way around. Thanks for any help
    For all three, rewrite all the sines and cosines in terms of exponentials.
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    Re: Complex Number Exponential Differentiation

    Yeah, I can do that. The only part that confuses me is the effect of the 51 in 20a
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    Re: Complex Number Exponential Differentiation

    Quote Originally Posted by stormerze View Post
    Yeah, I can do that. The only part that confuses me is the effect of the 51 in 20a
    Show what you have done and exactly what about the 51st derivative confuses you.
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  7. #7
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    Re: Complex Number Exponential Differentiation

    I have Re [(1-[root3]i)^51*e^t(1+3i)]

    Where do I go from there?

    For 20b I have:

    -[root2]^75*e^t(cost + isint)

    Not sure where to go from there either.
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  8. #8
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    Re: Complex Number Exponential Differentiation

    http://www.mathhelpforum.com/math-he...rs-152616.html

    Take a look at my post in this thread
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