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Easy

Question

The general solution of the equation fraction numerator d y over denominator d x end fraction equals 1 plus x y is

  1. y equals c e to the power of negative x squared over 2 end exponent
  2. y equals c e to the power of x squared over 2 end exponent
  3. y equals left parenthesis x plus c right parenthesis e to the power of negative x squared over 2 end exponent
  4. None of these

The correct answer is: None of these

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