- #1

yjl

- 8

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My book says/does the following.

Use the following equation for a plane wave

Fill it in the klein-gordon equation

To get

Which results in

Is this right? I got something different and no matter how hard I try I can't replicate the same answer. I've gotten the last equation, but without the c to the power of 4. I also feel like they just flat out forgot μ in the third equation.