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If we multiply one row a matrix by k, i.e, $\begin{vmatrix} ka& kb\\ c& d\end{vmatrix}$, then which of the following is also the value of the determinant?

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Answer: $ k \; \begin{vmatrix} a& b\\ c& d\end{vmatrix}$

answered Mar 12, 2013 by balaji.thirumalai

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