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If the chord through the points whose eccentric angles are alpha and beta on the ellipse fraction numerator x to the power of 2 end exponent over denominator a to the power of 2 end exponent end fraction plus fraction numerator y to the power of 2 end exponent over denominator b to the power of 2 end exponent end fraction =1 passes through the focus (ae, 0), then the value of tan fraction numerator alpha over denominator 2 end fraction tan fraction numerator beta over denominator 2 end fraction = 0 is –

Maths-General

  1. None of these    
  2. fraction numerator e plus 1 over denominator e – 2 end fraction    
  3. fraction numerator e plus 1 over denominator e – 1 end fraction    
  4. fraction numerator e – 1 over denominator e plus 1 end fraction    

    Answer:The correct answer is: fraction numerator e – 1 over denominator e plus 1 end fraction

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