The equation of the plane passing through the point (1, 1, 1) and perpendicular to the planes and , is
- (A)
- (B)
- (C)✓ Correct
- (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 :
Normal vectors: and .
The cross product is:
Using point and normal :
JEE Advanced · 2017 · 21 May 2017 · Paper 2 · Single correct option