Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let a vector 
has a magnitude 9. Let a vector 
be such that for every (x, y) 
R x R - {(0,0)}, the vector (x 
+ y 
) is perpendicular to the vector (6y 
-18x 
). Then the value of 
is equal to:
A
B
C
9
D
81
Text Solution
Verified by ExpertsThe correct answer is:
B
This should hold 
Now 
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