Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If the vectors 
, 
, 
are coplanar, then -
A
( 
) = 0
) = 0
B
= 0
C
= 0
D
None of these
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(a, b, c)
, 
, 
are coplanar and hence ( 
, 
, 
) = 0 Also scalars exist such that λ 
+ m 
+ n 
= 0
Taking the dot product with 
and 
, λ 
. 
+ m 
. 
+ n 
. 
= 0 λ 
. 
+ m 
. 
+ n 
. 
= 0 Eliminating λ , m, n, we have 
= 0
Taking dot product with 
and eliminating λ , m, n we get the other determinant equal to zero.
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