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- Thread starter mmmboh
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In summary, when you add matrices A and B together, the determinant of C is the sum of the determinants of the two matrices.

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Well all the rows in C are a linear combination of vectors in A and B.

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mmmboh said:Well all the rows in C are a linear combination of vectors in A and B.

I'm referring to the second row being a sum of two vectors.

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Ah I didn't know you can do that :S...thanks!

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mmmboh said:

No, it's not the same thing. I'm using that det is a multilinear function of it's rows (or columns). It's a fundamental property of the determinant. Try and find it in your book. It's important.

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