(Solved): 4. State whether the given matrix is in reduced form. If it is not in reduced form, state the row o ...

4. State whether the given matrix is in reduced form. If it is not in reduced form, state the row operation that needs to be applied. a). $$\left[\begin{array}{lllll}1& 3& 0& 3& 2\\ 0& 0& 1& 0& 0\end{array}\right]$$ b). $$\left[\begin{array}{llll}1& 0& 9& 8\\ 0& 1& 0& 4\\ 0& 0& 1& 4\end{array}\right]$$ 5. Solve the given system of equations using your calculator. Please show me the initial matrix, and then solve the system of equations for $$x_1,x_2$$, and $$x_3$$. $$\begin{array}{l}4x_1?2x_2+3x_3=13\\ 3x_1?x_2?2x_3=6\\ 2x_1+4x_2?x_3=9\end{array}$$ 6. Perform the indicated operation for the two matrices below. $$\left[\begin{array}{ccc}1& 15& ?6\\ ?5& 11& 10\\ 0& ?2& 3\end{array}\right]+\left[\begin{array}{ccc}1& 5& 17\\ 0& 10& ?7\\ 13& ?4& 8\end{array}\right]=$$