7.1 Exercise 9

Compute $\left|\Psi \left(x , t\right)\right|^{\textrm{ } 2}$ for the function $\Psi \left(x , t\right) = \psi \left(x\right) \text{sin} \omega \textrm{ } \textrm{ } t$, where $\omega$ is a real constant.