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प्रश्न
If A =`[[2,3],[5,7]],B =` `[[-1,0 ,2],[3,4,1]]`,`C= [[-1,2,3],[2,1,0]]`find : A + B and B + C
योग
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उत्तर
`A +B = [[2 3],[5 7]]``+[[-1 0 2],[3 4 1 ]]`
It is not possible to add these matrices because the number of elements in A are not equal to the
number of elements in B. So, A + B does not exist.
⇒ B+C= `[[-1 0 2],[3 4 1]]`+`[[-1 2 3],[2 1 0]]`
⇒ B+C=`[[-1-1 0+2 2+3],[3+2 4+1 1+0]]`
⇒ B+C=`[[-2 2 5],[5 5 1]]`
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