JEE Advanced · 2017 · 21 May 2017 · Paper 2 · Three Dimensional Geometry

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The equation of the plane passing through the point (1, 1, 1) and perpendicular to the planes and , is
  1. (A)
  2. (B)
  3. (C)✓ Correct
  4. (D)

Answer: (C)

Solution

The normal vector to the required plane is perpendicular to both given planes, so it is parallel to the cross product of their normals.

Normal vectors: and .

The cross product is:


Using point and normal :


JEE Advanced · 2017 · 21 May 2017 · Paper 2 · Single correct option

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