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NDA2014MathematicsVector AlgebraActual

If | a + b |=| a - b | , then which one of the following is correct?

Options

  1. A| a |=| b |
  2. Ba is parallel to b
  3. Ca is perpendicular to b
  4. Da is a unit vector

Correct answer

C. a is perpendicular to b

Step-by-step solution

The correct answer is option (C)

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