MathematicsEasy244×since 2002Q4477If AAA is a 3×33 \times 33×3 non-singular matrix such that AA′=A′AAA'=A'AAA′=A′A and B=A−1A′,B = {A^{ - 1}}A',B=A−1A′, then BB′BB'BB′ equals:AB−1{B^{ - 1}}B−1B(B−1)′\left( {{B^{ - 1}}} \right)'(B−1)′CI+BI+BI+BDIIICheck answerSkip