$7\mathrm{.}34$ and $7\mathrm{.}35$ Use the virtual work method to determine the slope and deflection at point $D$ of the beam shown.

$EI-$ cunstaut

$E=200$GPa

$I=262({10}^6)m{m}^4$

FIG. P$7\mathrm{.}34,$ P$7\mathrm{.}63$