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The matrix A has x rows and (x+5) column...

The matrix `A` has `x` rows and `(x+5)` column. If the matrix `B` has `y` rows and `(11-y)` columns `&` both `A Ba n dB A` exist, then `x=8` (b) `x=3` `y=6` (d) `y=8`

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