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If M,N are 3 xx 2,2 xx 3 matrices such t...

If M,N are `3 xx 2,2 xx 3` matrices such that `MN=[(8,2,-2),(2,5,4),(-2,4,5)],` then `[1/10*det(NM)]` is equal to - (NM is invertible and [.]denotes the greatest integer function)

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