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NDA 2010
Exam
NDA
Year
2010
Subject
Mathematics
Chapter
Differential Equations

NDA 2010 · Mathematics · Differential Equations

What does the differential equation y (d y)/(d x)+x=k (k is any...

What does the differential equation ydydx+x=ky \frac{d y}{d x}+x=k (kisanyconstant)represent?is any constant) represent?

Options

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

Correct answer

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

Step-by-step solution

The correct answer is option (B).
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