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प्रश्न
If A = `|(1,3),(3,2)|` and B = `|(-2 , 3),(-4 , 1)|` find BA
उत्तर
BA = `|(-2 , 3),(-4 , 1)| |(1,3),(3,2)|`
= `|(-2+9 , -6+6),(-4 + 3 , -12 + 2)|`
= `|(7 , 0),(-1 , -10)|_(2 xx 2)`
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