JEE Main 2012 Mathematics question

Mathematics Three Dimensional Geometry JEE Main 2012

An equation of a plane parallel to the plane x − 2y + 2z − 5 = 0 and at a unit distance from the origin is

(1)x − 2y + 2z − 3 = 0Correct
(2)x − 2y + 2z + 1 = 0
(3)x − 2y + 2z − 1 = 0
(4)x − 2y + 2z + 5 = 0

Answer: (1)

Solution

Parallel planes: x − 2y + 2z + d = 0 with distance . x − 2y + 2z − 3 = 0 is listed, option (1).

Question ID VK-103802