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Derivatives...the complex kind

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squance:
I can't seem to do this question from my green calculus book.

Find the derivative with respect to the real variable t, using the complex exponential:

the 18th derivative of e^(1-i)t

Can someone hlep me please?

Collin Li:


Since

squance:
Is that it? wow....
The answer in the book says -512ie^(1-i)t...

im not sure...

Collin Li:
Yep, that's right.

, and



So our answers are equivalent. That answer looks nicer.

squance:
Oh...I see now
Thanks so much. :)

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