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If a = 1 2 − 3 5 4 0 , B = 1 4 3 − 2 5 0 , Then Find 2a + 3b. - Mathematics and Statistics

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प्रश्न

If `"A" = [(1,2,-3),(5,4,0)] , "B" = [(1,4,3),(-2,5,0)]`, then find 2A + 3B.

बेरीज

उत्तर

2A + 3B = `2[(1,2,-3),(5,4,0)] + 3[(1,4,3),(-2,5,0)]`

= `[(2,4,-6),(10,8,0)] + [(3,12,9),(-6,15,0)]`

⇒ ∴ 2A + 3B = `[(5,16,3),(4,23,0)]`

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2013-2014 (March)

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