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MHT CET20192 May 2019Morning ShiftMathematicsVector AlgebraActual

If p - , q - and r - are non-zero, non-coplanar vectors, then p - + q - - r - p - - q - q - - r - = ________

Options

  1. A3 p - q - r -
  2. B0
  3. Cp - q - r -
  4. D2 p - q - r -

Correct answer

C. p - q - r -

Step-by-step solution

Since, p , q , r non-zero, non-coplanar vectors then, p ¯ + q ¯ - r , ¯ p ¯ - q , ¯ q ¯ - r ¯ = 1 1 - 1 1 - 1 0 0 1 - 1 p q r = 1 + 1 - 1 p q r = p q r

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