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Matrices

Question
CBSEENMA12033005

Compute the indicated products :

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

Solution
open square brackets table row 2 1 row 3 2 row cell negative 1 end cell 1 end table close square brackets space open square brackets table row 1 0 1 row cell negative 1 end cell 2 1 end table close square brackets equals open square brackets table row cell 2 minus 1 end cell cell 0 plus 2 end cell cell 2 plus 1 end cell row cell 3 minus 2 end cell cell 0 plus 4 end cell cell 3 plus 2 end cell row cell negative 1 minus 1 end cell cell 0 plus 2 end cell cell negative 1 plus 1 end cell end table close square brackets equals open square brackets table row 1 2 3 row 1 4 5 row cell negative 2 end cell 2 0 end table close square brackets