Q$5-$ Create three row vectors:

a $=[3151142],$ b $=[7921312],$ c $=[247809]$

$($a$)$ Use the three vectors in a MATLAB command to create a $3\backslash$times $4$ matrix such that the first,

second, and third rows consist of the last four elements of the vectors a$,$ b$,$ and c$,$ respectively.

$($b$)$ Use the three vectors in a MATLAB command to create a $3\backslash$times $3$ matrix such that the first,

second, and third columns consist of the first three elements of the vectors a$,$ b$,$ and c$,$

respectively.