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Problem No$\mathrm{.}1$: $(6$pls$)$ Discretization.

a$)$ Using $$t least $36"20-$node Brick$-$ele "tents" in the space $(6$ DOF per ${?}^2$ Node$),$ give a finite element siscretization of this space structure representing a box$-$sectick beam. Show clearly nodes and tements.

h$)$ From ycit own numbering of nodes an$!$ clements, find the minimal se ii$-$bandwidth NHBW$.$