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