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AP EAMCET2001MathematicsVector Algebra

If is the angle between a and b and | a b |=| a b | , then is equal to

Options

  1. A0
  2. B2
  3. C4

Correct answer

3

Step-by-step solution

Given that, | a b |= a b aligned & & | a || b || | & =| a || b || | & & & =1 & & & = 4 aligned

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