Answer: 1.
- A 1
- B 1.5
- C 2
- D 3
Correct answer: A. 1
Explanation: Rewrite 4x+2y-4z=12 as 2x+y-2z=6. Distance = |d1-d2|/|n| = |3-6|/sqrt(4+1+4) = 3/3 = 1.
Three mutually perpendicular axes x, y, z meeting at the origin O, with a point P located by its (x, y, z) coordinates.
Concept context
Lines and planes in 3D space, direction cosines, distances, and angles