If the determinant of the matrix A is 3 then what is the determinant of det(4A)? The answer involves something like this: why does 4 get squared and come out in front?
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You're kidding, right?! Did you try even one example? Try a 2x2 matrix and see for yourself. It's called "exploration".
Originally Posted by superdude If the determinant of the matrix A is 3 then what is the determinant of det(4A)? The answer involves something like this: why does 4 get squared and come out in front? Basic properties of determinants, and it is only if the matrix is 2 x 2; in general, if the determinant is n x n, a scalar. Tonio
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