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A and B are two matrices of the order 3x...

A and B are two matrices of the order `3xx m` and `3xx n` respectively, and m=n, then the order of the matrix `(5 A-2 B)` is

A

`mxx 3`

B

`3xx 3`

C

`mxx n`

D

`3xx n`

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The correct Answer is:
D
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