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CGP EDU Academic Team
Published on: August 11, 2026
The locus represented by xy + yz = 0 is
Text Solution
Verified by ExpertsThe correct answer is:
D
y (x + z) = 0 ⇒ y = 0 ⇒ x + z = 0
Dr's of normal of this plane are 0,1,0 ; Dr's of normal of this plane are 1,0,1
a 1 a 2 + b 1 b 2 + c 1 c 2 = 0 + 0 + 0 = 0
∴ Normals of these plane are perpendicular. Hence planes are perpendicular.
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