If \[\Delta =\left| \,\begin{matrix} a & b & c\\ x & y & z\\ p & q & r\\ \end{matrix}\, \right|\], then \[\left| \,\begin{matrix} ka & kb & kc\\ kx & ky & kz\\ kp & kq & kr\\ \end{matrix}\, \right|\]= [RPET 1986]

If \[\Delta =\left| \,\begin{matrix} a & b & c\\ x & y & z\\ p &

1.	If \[\Delta =\left\| \,\begin{matrix} a & b & c\\ x & y & z\\ p & q & r\\ \end{matrix}\, \right\|\], then \[\left\| \,\begin{matrix} ka & kb & kc\\ kx & ky & kz\\ kp & kq & kr\\ \end{matrix}\, \right\|\]= [RPET 1986]
A.	\[\Delta \]
B.	\[k\Delta \]
C.	\[3k\Delta \]
D.	\[{{k}^{3}}\Delta \]
Answer» E.

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If \[\Delta =\left| \,\begin{matrix} a & b & c\\ x & y & z\\ p & q & r\\ \end{matrix}\, \right|\], then \[\left| \,\begin{matrix} ka & kb & kc\\ kx & ky & kz\\ kp & kq & kr\\ \end{matrix}\, \right|\]= [RPET 1986]

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