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MHT CET2010MathematicsVector Algebra

The position vectors of vertices of a A B C are array lll 4 i -2 j , & i +4 j -3 k and & - i +5 j + k array respectively, then A B C is equal to

Options

  1. A6
  2. B4
  3. C3
  4. D2

Correct answer

D. 2

Step-by-step solution

Here , A B =-3 i +6 j -3 k , B C =-2 i + j +4 k and A B B C =6+6-12=0 A B C= 2

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