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Maths-

If the chords of contact of P space open parentheses x subscript 1 comma y subscript 1 close parentheses and Q space open parentheses x subscript 2 comma y subscript 2 close parentheses w.r.t 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 equals 1 are at right angle then fraction numerator x subscript 1 end subscript x subscript 2 end subscript over denominator y subscript 1 end subscript y subscript 2 end subscript end fraction equals

Maths-General

  1. fraction numerator a to the power of 2 end exponent over denominator text end text b to the power of 2 end exponent end fraction    
  2. fraction numerator negative b to the power of 2 end exponent over denominator a to the power of 2 end exponent end fraction    
  3. fraction numerator negative a to the power of 4 end exponent over denominator text end text b to the power of 4 end exponent end fraction    
  4. fraction numerator negative b to the power of 4 end exponent over denominator a to the power of 4 end exponent end fraction    

    Answer:The correct answer is: fraction numerator negative a to the power of 4 end exponent over denominator text end text b to the power of 4 end exponent end fraction

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