- #1

- 116

- 2

## Homework Statement

The Hermitian operators [itex]\hat{A},\hat{B},\hat{C}[/itex] satisfy the commutation relation[itex][\hat{A},\hat{B}]=c\hat{C}[/itex].

Show that c is a purely imaginary number.

## The Attempt at a Solution

I don't usually post questions without some attempt at an answer but I am at a loss here.