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AP EAMCET2001MathematicsVector Algebra

a , b , c , d are coplanar vectors, then ( a b ) ( c d ) is equal to

Options

  1. A0
  2. B1
  3. Ca
  4. Db

Correct answer

A. 0

Step-by-step solution

We have, a , b , c and d are coplanar vectors, then a b and c d are perpendicular on the same plane, therefore, a b and c d both are parallel to each other, then ( a b ) ( c d )=0

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