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CBSE Questions for Class 12 Commerce Maths Vector Algebra Quiz 14 - MCQExams.com

For any two vectors →a and →b,(→a׈i).(→b׈i)+(→a׈j).(→b×→j)+(→a×→k).(→b×→k) is always equal to
  • →a.→b
  • 2→a.→b
  • zero
  • none of these
The unit vector perpendicular to the vectors ˆi−ˆj forming a right handed system is
  • ˆk
  • −ˆk
  • ˆi−ˆj√2
  • ˆi+ˆj√2
For any three vectors →a,→b and →c,(→a−→b)⋅(→b−→c)×(→c−→a)=2→a⋅→b×→c
  • True
  • False
0:0:1


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Practice Class 12 Commerce Maths Quiz Questions and Answers