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General
Easy

Question

The curve represented by x=2(cost + sint) and y = 5(cos t - Sin t ) is

  1. a circle    
  2. a parabola    
  3. an ellipse    
  4. a hyperbola    

The correct answer is: an ellipse


    fraction numerator x over denominator 2 end fraction equals c o s invisible function application t plus s i n invisible function application t comma fraction numerator y over denominator 5 end fraction equals c o s invisible function application t minus s i n invisible function application t

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