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The non-zero verctors a , b and c are related by a =8 b and c =-7 b . Then the angle between a and c is

Options

  1. A0
  2. B/ 4
  3. C/ 2

Correct answer

3

Step-by-step solution

Since a =8 b c =-7 b a and b are like vectors and b and c are unlike. a and c will be unlike Hence, angle between a and c = .

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