JEE Main 202131 Aug, Evening shiftMathematicsMediumMatrices and Determinants245× since 2002The number of elements in the set {A=(ab0d):a,b,d∈{−1,0,1} and (I−A)3=I−A3}\left\{ {A = \left( {\matrix{ a & b \cr 0 & d \cr } } \right):a,b,d \in \{ - 1,0,1\} \,and\,{{(I - A)}^3} = I - {A^3}} \right\}{A=(a0bd):a,b,d∈{−1,0,1}and(I−A)3=I−A3}, where I is 2 ×\times× 2 identity matrix, is :Your answerType your answer. Integers and decimals are accepted.CheckSkip · show solution
