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Matrices

Question
CBSEENMA12033001

Compute the indicated products :

open square brackets table row 1 row 2 row 3 end table close square brackets space open square brackets table row 2 3 4 end table close square brackets

Solution
open square brackets table row 1 row 2 row 3 end table close square brackets space open square brackets table row 2 3 4 end table close square brackets space equals space open square brackets table row 2 3 4 row 4 6 8 row 6 9 12 end table close square brackets