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MHT CET202312 May 2023Evening ShiftMathematicsVector AlgebraActual

The unit vector which is orthogonal to the vector 3 i +2 j +6 k and coplanar with the vectors 2 i + j + k and i + j + k is

Options

  1. A8 i -3 j +3 k 82
  2. B-8 i -3 j +3 k 82
  3. C-8 i +3 j +3 k 82
  4. D- 8 i +3 j +3 k 82

Correct answer

C. -8 i +3 j +3 k 82

Step-by-step solution

Consider option (C) (3 i +2 j +6 k ) ( -8 i +3 j +3 k 82 )=0 This is valid for only option (C) Option (C) is correct.

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