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Deepak patra Asked a Question
March 14, 2022 9:05 pmpts 30 pts
if A and B are 2x2 matrix and AB=l then does it implies that A and B are invertible?????
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  • Deepak patra
    sir if AB=l but BA=\I ... in this case also A and B are invertible ???
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    Navdeep goyal 1
    invertable
  • Navdeep goyal 1 Best Answer
    AB=I then B=A^-1 and A=B^-1 A and B is invertable
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