Consider the matrix
\displaystyle\left[\begin{array}{cc}
-2 &2 \cr
-2 &4 \cr
\end{array}\right].

(a) Find its determinant;

Your answer is :

(b) Does the matrix have an inverse?

Your answer is (input Yes or No) :

(a) Find its determinant;

Your answer is :

(b) Does the matrix have an inverse?

Your answer is (input Yes or No) :

You can earn partial credit on this problem.