Physics-
General
Easy

Question

If the sum of two unit vectors is a unit vector, then the magnitude of their difference is

  1. square root of 2    
  2. square root of 3    
  3. fraction numerator 1 over denominator square root of 2 end fraction    
  4. square root of 5    

The correct answer is: square root of 3

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STATEMENT1 : The equation f(x) = 3 has infinite number of solutions. because
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