The vector equation of the plane through the point (2, 1, ?1) and passing through the line of intersection of the plane \[\mathbf{r}.(\mathbf{i}+3\mathbf{j}-\mathbf{k})=0\] and \[\mathbf{r}.(\mathbf{j}+2\mathbf{k})=0\] is

\[\mathbf{r}.(\mathbf{i}+9\mathbf{j}+11\mathbf{k})=6\]

\[\mathbf{r}.(\mathbf{i}+9\mathbf{j}+11\mathbf{k})=0\]

\[\mathbf{r}.(\mathbf{i}-3\mathbf{j}-13\mathbf{k})=0\]

The vector equation of the plane through the point (2, 1, ?1) and pass

1.	The vector equation of the plane through the point (2, 1, ?1) and passing through the line of intersection of the plane \[\mathbf{r}.(\mathbf{i}+3\mathbf{j}-\mathbf{k})=0\] and \[\mathbf{r}.(\mathbf{j}+2\mathbf{k})=0\] is
A.	\[\mathbf{r}.(\mathbf{i}+9\mathbf{j}+11\mathbf{k})=0\]
B.	\[\mathbf{r}.(\mathbf{i}+9\mathbf{j}+11\mathbf{k})=6\]
C.	\[\mathbf{r}.(\mathbf{i}-3\mathbf{j}-13\mathbf{k})=0\]
D.	None of these
Answer» B. \[\mathbf{r}.(\mathbf{i}+9\mathbf{j}+11\mathbf{k})=6\]

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The vector equation of the plane through the point (2, 1, ?1) and passing through the line of intersection of the plane \[\mathbf{r}.(\mathbf{i}+3\mathbf{j}-\mathbf{k})=0\] and \[\mathbf{r}.(\mathbf{j}+2\mathbf{k})=0\] is

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