(adsbygoogle = window.adsbygoogle || []).push({}); Help on proofs!?! pleasee

Hi there, I was given these proofs to do for my quantum class.

proofs are the worst for me, I know it work and i have and idea how it starts which i wrote in the image but I can't seem to figure out the inbetweens. I've attach the images, if anyone can help me that would be great! thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Help on proofs? pleasee

**Physics Forums | Science Articles, Homework Help, Discussion**