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प्रश्न
Evaluate the following :
`|(0 , 1),(-1 , 2),(-2 , 0)| |(0 , -4 , 0),(3 , 0 , -1)|`
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उत्तर
`|(0 , 1),(-1 , 2),(-2 , 0)|_(3 xx 2) |(0 , -4 , 0),(3 , 0 , -1)|_(2 xx 3)`
`= |(0+3 , 0+0 , 0-1),(0+6 , 4 + 0,0 - 2),(0+0 , 8+0 , 0+0)|`
`= |(3, 0 , -1),(6 , 4 , -2),(0 , 8 , 0)|_(3 xx 3)`
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