Practicing Success
Practicing Success
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The locus represented by xy + yz = 0 is: |
A pair of perpendicular lines A pair of parallel lines A pair of parallel planes A pair of perpendicular planes |
A pair of perpendicular planes |
xy + yz=0 ⇒ x (y + z) = 0 ⇒ x = 0, y +z = 0 Thus it represents a pair of planes x = 0, y + z = 0 that are clearly mutually perpendicular. |
