# Complex Conjugate Help

I am trying to follow my teacher's instructions to easily compute for a complex conjugate but I get mathematica to actually reveal the complex conjugate besides the word "conjugate" and even with that the outputs don't seem to match my professor's for Quantum mechanics class. I'm not sure if the coding my professor used is no longer valid, but I really would like to get a handle on this for much more complex (no pun intended) functions involving imaginary numbers and such. I appreciate any assistance in this regard.

This a picture I PrtSc for a better look at what I did

And Here's what my professor was able to do but I can't emulate despite multiple attempts

• Use a + I b instead of a + Ib – Carl Woll Sep 20 at 0:28
• Thanks so much Carl, that seemed to do it! You have saved me from pulling my hair out. – Biometric09 Sep 20 at 0:32
• Well ok, it worked until I got to Input 6 – Biometric09 Sep 20 at 0:38

ComplexExpand is powerful.
Clear["*"];
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