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NDA2010MathematicsDifferential EquationsActual

What does the differential equation y d y d x +x=k ( k is any constant) represent?

Options

  1. AA family of circles having centre on the y -axis
  2. BA family of circles having centre on the x -axis
  3. CA family of circles touching the x -axis
  4. DA family of ellipses

Correct answer

B. A family of circles having centre on the x -axis

Step-by-step solution

The correct answer is option (B).

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