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

Options

  1. A-83
  2. B- 83 2
  3. C-75
  4. D- 75 2

Correct answer

B. - 83 2

Step-by-step solution

The correct answer is option (B)

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