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If A(3,0), B(-3,0) then the locus of the point P such that P A to the power of 2 end exponent plus P B to the power of 2 end exponent equals 18 text  is end text

  1. x to the power of 2 end exponent plus y to the power of 2 end exponent equals 0    
  2. x to the power of 2 end exponent plus y to the power of 2 end exponent equals 8    
  3. x to the power of 2 end exponent plus y to the power of 2 end exponent equals 9    
  4. 2 x to the power of 2 end exponent plus y to the power of 2 end exponent equals 3    

The correct answer is: x to the power of 2 end exponent plus y to the power of 2 end exponent equals 0


    left parenthesis x minus 3 right parenthesis to the power of 2 end exponent plus y to the power of 2 end exponent plus left parenthesis x plus 3 right parenthesis to the power of 2 end exponent plus y to the power of 2 end exponent equals 18

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