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Question
Evaluate the following :
`|(0 , 1 , 0),(2 , 0 , -3),(1 , 0 , -2)| |(1 , -2),(3 , 4),(0 , 0)|`
Solution
`|(0 , 1 , 0),(2 , 0 , -3),(1 , 0 , -2)| _(3 xx 3) |(1 , -2),(3 , 4),(0 , 0)|_(3 xx 2)`
`= |(0+3+0 , 0+4+0),(2 + 0 + 0 , -4 + 0 + 0),(1 + 0 + 0 , -2 + 0 + 0)|`
`= |(3 , 4),(2 , -4),(1 , -2)|_(3 xx 2)`
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