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Question

The length of the chord joining the points left parenthesis 4 cos invisible function application theta comma blank 4 sin invisible function application theta right parenthesis and left parenthesis 4 cos invisible function application open parentheses theta plus 60 degree close parentheses comma blank 4 sin invisible function application left parenthesis theta plus 60 degree right parenthesisof the circle x to the power of 2 end exponent plus y to the power of 2 end exponent equals 16 is

  1. 4    
  2. 8    
  3. 16    
  4. 2    

The correct answer is: 4

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