MathematicsEasy244×since 2002Q4423If A = \left[ {\matrix{ {5a} & { - b} \cr 3 & 2 \cr } } \right] and AAA adj A=AA=AA=A AT,{A^T},AT, then 5a+b5a+b5a+b is equal to :A444B131313C−1-1−1D555Check answerSkip