JEE Main 202117 Mar, Evening shiftMathematicsMediumMatrices and Determinants245× since 2002Let A=[abcd]A = \left[ {\matrix{ a & b \cr c & d \cr } } \right]A=[acbd] and B=[αβ]≠[00]B = \left[ {\matrix{ \alpha \cr \beta \cr } } \right] \ne \left[ {\matrix{ 0 \cr 0 \cr } } \right]B=[αβ]=[00] such that AB = B and a + d = 2021, then the value of ad −-− bc is equal to ___________.Your answerType your answer. Integers and decimals are accepted.CheckSkip · show solution
