MHB How Many 3x3 Non-Singular Matrices Exist with Four 1s and Five 0s?

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The no. of $3 \times 3$ non - singular matrices matrices, with four entries as $1$ and all other entries as $0$
 
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jacks said:
The no. of $3 \times 3$ non - singular matrices matrices, with four entries as $1$ and all other entries as $0$
I assume the question is "Find the number of ...", in which case I suggest you count the number of ways you can make a singular matrix and then subtract this from the total number of all possible matrices.
 

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