Question Number 170028 by Best1 last updated on 14/May/22
$${verify}\:{that}\:\:\langle{p}_{{x}} \mid\hat {{x}}\mid\Psi\rangle={ih}\frac{{d}}{{dp}_{{x}} }<{p}_{{x}} \mid\Psi> \\ $$
Commented byBest1 last updated on 14/May/22
$${please}\:{help}\:{me} \\ $$