If the determinant of the matrix A is 3 then what is the determinant of det(4A)?

The answer involves something like this:

$\displaystyle 4^2det(A)$

why does 4 get squared and come out in front?

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- Jan 28th 2010, 11:15 AMsuperdudewhat effect does this have on the deteriminant?
If the determinant of the matrix A is 3 then what is the determinant of det(4A)?

The answer involves something like this:

$\displaystyle 4^2det(A)$

why does 4 get squared and come out in front? - Jan 28th 2010, 02:24 PMTKHunny
You're kidding, right?!

Did you try even one example?

Try a 2x2 matrix and see for yourself. It's called "exploration". (Speechless) - Jan 28th 2010, 06:40 PMtonio