engineering recuitment GATE CE 2023-24 Test Series Engineering Mathematics Linear Algebra Matrix Algebra
What is the value of (x × y), if x and y satisfy
\(\left[ {\begin{array}{*{20}{c}} 6&{15}\\ { - 12}&9 \end{array}} \right]\left[ {\begin{array}{*{20}{c}} x\\ y \end{array}} \right] = \left[ {\begin{array}{*{20}{c}} {12}\\ { - 180} \end{array}} \right]\)Enter numerical value using the virtual keypad. Round off where necessary.