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प्रश्न
If A = `|(1215),(1117)|` and B = `|(2,7),(4,9)|` find : 2A + 3B
उत्तर
A = `|(12 , 15),(11 , 17)|_(2 xx 2)` , B = `|(2,7),(4,9)|_(2xx2)`
2A+ 3B
2A = `|(24 , 30),(22 , 34)|` , 3B = `|(6 , 21),(12 , 27)|`
2A+ 3B = `|(24 + 6 , 30 + 21), (22 + 12 , 34+27)|`
`= |(30 , 51),(34 , 61)|_(2 xx 2)`
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