17. An electron in an oscillating electric field is described by the Hamiltonian operator
$H = \frac{p^2}{2m} - (eE_0 cos\omega t)x$
Calculate expressions for the time dependence of \(\langle x \rangle\), \(\langle p \rangle\), and \(\langle H \rangle\).
18. Solve the equations of motion you obtained in Problem 17. Write your solutions in terms of \(\langle x \rangle_0\) and
\(\langle p \rangle_0\), the expectation values at time $t = 0$.