Question
Mathematics Question on Vectors
If the vectors 2i^−3j^+4k^,2i^+j^−k^ and λi^−j^+2k^ are coplanar, then the value of λ is
A
6
B
-5
C
-6
D
5
Answer
6
Explanation
Solution
The correct answer is (A) : 6.
If the vectors 2i^−3j^+4k^,2i^+j^−k^ and λi^−j^+2k^ are coplanar, then the value of λ is
6
-5
-6
5
6
The correct answer is (A) : 6.