Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The sum of all values of a, for which the points whose position vectors are 
and 
are coplanar, is equal to
Text Solution
Verified by ExpertsThe correct answer is:
B
Let the given vectors be 
an 
We know that if the vectors are coplanar then 
Now,
1(6 + 
- 6)+(3 
+ 8)+( 
2 - 6 
- 16)= 0
On Simplifying we get,
Therefore, sum of the roots is -(-2)= 2.
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