Given the matrix $\displaystyle\left[\begin{array}{cc} -6 &1 \cr -6 &5 \cr \end{array}\right]$
(a) does the inverse of the matrix exist?
Your answer is (input Yes or No) :
(b) if your answer is yes, write the inverse here:

$\left.\vphantom{\begin{array}{c}\!\strut\\\!\strut\\\!\strut\\\end{array}}\right[$ $\left.\vphantom{\begin{array}{c}\!\strut\\\!\strut\\\!\strut\\\end{array}}\right]$

.