Define the symbolic vector $x=\left[\begin{array}{ccc}r& t& v\end{array}\right].$

In Exercise $36$ above, perform the addition operation of the two vectors $x$ and $\left[\begin{array}{cccc}1& 0& -2& 3\end{array}\right]$ to obtain the new symbolic vector $y.$

In Exercise $37$ above, extract the third element of the vector $y.$

In Exercise $37$ above, perform the operation $2**\frac{x}{7}+3**y.$

In Exercise $37$ above, perform the dot products $x^{***}{y}^{\text{'}}$ and $y^{***}{x}^{\text{'}}.$ Are the two results the same? Why?

In Exercise $37$ above, find the square root of the symbolic vector $x+y.$