If the plane 2x - y + z = 0 is parallel to the line 2x - 12 = 2 - y2 = z + 1a, then the value of a is :
4
- 4
2
- 2
B.
Line is parallel to the given plane
i.e., x - 121 = y - 2- 22 = z + 1a is parallel to
2x - y + z = 0
If 2 + 2 + a = 0
⇒ a = - 4
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