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MHT CET202211 Aug 2022Morning ShiftMathematicsVector AlgebraActual

The sum of the distinct real values of , for which the vector i + j + k , i + j + k , i + j + k are coplanar is

Options

  1. A1
  2. B-1
  3. C2
  4. D0

Correct answer

B. -1

Step-by-step solution

From the condition for co-planarity aligned & | array lll & 1 & 1 1 & & 1 1 & 1 & array |=0 & (2+ )( -1)^2=0 & =-2 or =1 & sum =-2+1=-1 aligned

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