Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If | 
| = | 
| = | 
| = 1such that 
× ( 
× 
) = 
( 
and 
are not collinear) then -
A
and 
are perpendicular
B
The angle between 
and 
is 30º
and is 30º
C
The angle between 
and 
is 60ºC
and is 60ºC
D
and 
are perpendicular
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(c, d)
× ( 
× 
) = 
⇒ ( 
. 
) 
– ( 
. 
) 
= 
⇒ ( 
. 
– 
) 
– ( 
. 
) 
= 0
Since 
and 
are not collinear
. 
– 
= 0, 
. 
= 0
∴ Choices and become correct.
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