MHT CET20227 Aug 2022Morning ShiftMathematicsMatricesActual
If [ array ll 2 & 1 3 & 2 array ] A [ array cc -3 & 2 5 & -3 array ]= [ array ll 1 & 0 0 & 1 array ] , then A=
Options
- A[ array ll 1 & 1 1 & 1 array ]
- B[ array ll 1 & 0 1 & 1 array ]
- C[ array ll 1 & 1 1 & 0 array ]
- D[ array ll 1 & 1 0 & 1 array ]
Correct answer
C. [ array ll 1 & 1 1 & 0 array ]
Step-by-step solution
aligned & [ array ll 2 & 1 3 & 2 array ] A [ array cc -3 & 2 5 & -3 array ]= [ array ll 1 & 0 0 & 1 array ] & A= [ array ll 2 & 1 3 & 2 array ]⁻¹ [ array ll 1 & 0 0 & 1 array ] [ array ll 3 & 2 5 & 3 array ]⁻¹ & A= [ array cc 2 & -1 -3 & 2 array ] [ array ll 1 & 0 0 & 1 array ] [ array ll 3 & 2 5 & 3 array ] & A= [ array cc 2 & -1 -3 & 2 array ] [ array ll 3 & 2 5 & 3 array ] & A= [ array ll 1 & 1 1 & 0 array ] aligned