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MHT CET202410 May 2024Evening ShiftMathematicsThree Dimensional GeometryActual

The projection of AB on CD , where A (2,-3,0), B (1,-4,-2), C (4,6,8) and D (7,0,10) is

Options

  1. A1 6
  2. B1 7
  3. C4 6
  4. D4 7

Correct answer

B. 1 7

Step-by-step solution

aligned & AB =- i - j -2 k & CD =3 i -6 j +2 k aligned Scalar projection of AB on CD = AB CD CD = -3+6-4 9+36+4 = 1 7

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