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NDA2014MathematicsVector AlgebraActual

a + b + c = 0 such that | a | 3,| b |=5 and | c |=7 . What is | a + b | equal to?

Options

  1. A7
  2. B8
  3. C10
  4. D11

Correct answer

A. 7

Step-by-step solution

The correct answer is option (A)

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