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Questions  >>  JEEMAIN and NEET  >>  Mathematics  >>  Class11  >>  3-D Geometry
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Q)

The equation of the plane through origin and the line of intersection of the planes $\overrightarrow r.\overrightarrow a=\lambda\:\:and\:\:\overrightarrow r.\overrightarrow b=\mu$ is ?

$\begin{array}{1 1} (a)\:\overrightarrow r.(\lambda\overrightarrow a-\mu\overrightarrow b)=0\:\qquad\:(b)\:\overrightarrow r.(\lambda\overrightarrow b-\mu\overrightarrow a)=0\:\qquad\:(c)\:\overrightarrow r.(\lambda\overrightarrow a+\mu\overrightarrow b)=0\:\qquad\:(d)\:\overrightarrow r.(\lambda\overrightarrow b+\mu\overrightarrow a)=0 \end{array} $

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