(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[PLAIN]http://img823.imageshack.us/img823/4500/85131172.png [Broken]

2. Relevant equations

Derivations and substitutions.

3. The attempt at a solution

Basically it seems like a very simple problem to me however I can't seem to get the right answer. First I just assumed that the c.c. (complex conjugate) was just a constant thus:

[tex]\Psi[/tex]'(x) = Cke^{ikx}

[tex]\Psi[/tex]''(x) = Ck^{2}e^{ikx}

But substituting that equation into the original DE gives:

Ck^{2}e^{ikx}= Ck^{2}e^{ikx}+ k^{2}(c.c)

obviously I'm missing something.

edit: maybe I read the question wrong could c.c. mean Ce^{-ikx}???

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# Homework Help: Derivative of a complex conjugate?

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