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NDA2014MathematicsDifferential EquationsActual

Paragraph : The general solution of the differential equation (x^2+x+1 ) d y+ (y^2+y+1 ) d x=0 is (x+y+1)=A(1+B x+C y+D x y) where B, C and D are constants and A is parameter. Question : What is D equal to?

Options

  1. A-1
  2. B1
  3. C2
  4. DNone of the above

Correct answer

C. 2

Step-by-step solution

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