whats the relation b/w ros or b/w columns of this matrix

I get a "404 Not Found" error.

Please reply with the full and exact text of the exercise, the complete instructions, and a clear statement of your efforts so far. Thank you! :wink:
 
I see it as "Without expanding verify that \(\displaystyle \left|\begin{array}{ccc}1 & 2 & 3x \\ 2 & 3 & 6x \\ 3 & 5 & 9x\end{array}\right|= 0\)"

goprth, there are a number of different ways of doing this but we have no idea which ones you know. What properties of determinants do you know? In particular, what do you know about when determinants will be 0? Do you know, for example, about "row (or column) operations" and how they change a matrix?
 
@stapel.
links is working here.thers no virus in it.
to clarify question.its a determinant.its not matrix.and it is equal to zero.we have to prove that it is equal to zero w/o expanding.
@HallsofIvy
there are seven properties of determinants.Property 4 is if any two rows or two columns of a determinant are equal.its value is zero.
i am finding it difficult to make its two columns are equal.or its two rows are equal.but people dont know how.
 
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