Published by:
CGP EDU Academic Team
Published on: August 12, 2026
The plane x – 2y + 7z + 21 = 0
A
Contains the line 
= 
= 
= =
B
Contains the point (0, 7, –1)
C
Is perpendicular to the line 
= 
= 
= =
D
Is parallel to the plane x – 2y + 7z = 0
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, b, c, d)
(A ) any point on the line (–1 –3k, 3+2 k, –2+k)
satisfies the plane.
(0, 7, –1) satisfies the given plane.
sin θ = 
= 1
⇒ θ = π /2
is correct.
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