Question
Mathematics Question on Vector Algebra
Let a=4i^−j^+3k^ and b=−2i^+j^−2k^. Then
(A) a is a unit vector
(B) a×b=−i^+2j^+2k^
(C) a and b are parallel vectors
(D) a and bare neither parallel nor perpendicular vectors
Choose the correct answer from the options given below :
A
(B) and (C) Only
B
(C) and (D) Only
C
(D) Only
D
(B) and (D) Only
Answer
(B) and (D) Only
Explanation
Solution
The correct option is (D):(B) and (D) Only