Chapter 2.2, Problem 2E

Let $A=\left[\begin{array}{cccc}0& 1& 2& 3\\ 1& 1& 1& 1\\ -2& -2& 3& 3\\ 1& 2& -2& -3\end{array}\right]$

(a) Use the elimination method to evaluate $\det \left(A\right)$ .

(b)Use the value of $\det \left(A\right)$ to evaluate.