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प्रश्न
If A = `|(15,7),(13,8)|` and B = `|(16,12),(27,11)|`, find matrix X such that 2A - X = B.
उत्तर
A = `|(15,7),(13,8)|_(2xx2)` , B = `|(16,12),(27,11)|_(2 xx 2)`
2A - X = B
X = 2A - B
X = `|(30,14),(26,16)| - |(16 , 12),(27 , 11)|`
`= |(14,2),(-1 , 5)|_(2 xx 2)`
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