Maths-
General
Easy

Question

The eccentricity of the hyperbola whose latus rectum subtends a right angle at centre is

  1. 2 s i n space 18 to the power of ring operator    
  2. 2 c o s space 36 to the power of ring operator    
  3. 2 t a n space 18 to the power of ring operator    
  4. 2 c o t space 18 to the power of ring operator    

The correct answer is: 2 c o s space 36 to the power of ring operator

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The coefficient of x to the power of n in fraction numerator x plus 1 over denominator left parenthesis x minus 1 right parenthesis squared left parenthesis x minus 2 right parenthesis end fraction is

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