0000:00:00:00:00Start20Number 20ExplanationGiven matrix A=(2−2x−11)A = \begin{pmatrix} 2 & -2 \\ x-1 & 1 \end{pmatrix}A=(2x−1−21). If det(A)=4\det(A) = 4det(A)=4, then the value of xxx is222111000−1-1−1−2-2−2
20Number 20ExplanationGiven matrix A=(2−2x−11)A = \begin{pmatrix} 2 & -2 \\ x-1 & 1 \end{pmatrix}A=(2x−1−21). If det(A)=4\det(A) = 4det(A)=4, then the value of xxx is222111000−1-1−1−2-2−2
