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    Maths-
    General
    Easy

    Question

    If A equals open square brackets table row 0 1 row 0 0 end table close square bracketsand A B equals O, then B =

    1. open square brackets table row 1 1 row 1 1 end table close square brackets    
    2. open square brackets table row 0 1 row cell negative 1 end cell 0 end table close square brackets    
    3. open square brackets table row 0 cell negative 1 end cell row 1 0 end table close square brackets    
    4. open square brackets table row cell negative 1 end cell 0 row 0 0 end table close square brackets    

    The correct answer is: open square brackets table row cell negative 1 end cell 0 row 0 0 end table close square brackets

      Since open square brackets table row 0 1 row 0 0 end table close square brackets open square brackets table row cell negative 1 end cell 0 row 0 0 end table close square brackets equals open square brackets table row 0 0 row 0 0 end table close square brackets equals O equals A B
      Þ B equals open square brackets table row cell negative 1 end cell 0 row 0 0 end table close square brackets

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