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Matrix A=[(1,2,3),(1,1,5),(2,4,7)], then...

Matrix `A=[(1,2,3),(1,1,5),(2,4,7)]`, then the value of `a_(31)A_(31)+a_(32)A_(32)+a_(33)A_(33)` is

A

1

B

13

C

`-1`

D

`-13`

Text Solution

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The correct Answer is:
c
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