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AP EAMCET2006MathematicsVector Algebra

The position vector of a point lying on the line joining the points whose positions vectors are i + j - k and i - j + k is :

Options

  1. Aj
  2. Bi
  3. Ck
  4. D0

Correct answer

B. i

Step-by-step solution

The position vector of mid point of line joining the points whose position vector are i + j - k and i - j + k . = i + j - k + i - j + k 2 = 2 i 2 = i

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