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AP EAMCET · Maths · Differential Equations

The solution of the differential equation 2xdydx-y=4 represents a family of

  1. A Ellipses
  2. B Parabolas
  3. C Straight lines
  4. D Circles
Verified Solution

Answer & Solution

Correct Answer

(B) Parabolas

Step-by-step Solution

Detailed explanation

Given differential equation is 2xdydx-y=4.. ⇒2xdydx=4+y ⇒2dy4+y=dxx On integrating both sides, we get ⇒∫24+ydy=∫1xdx ⇒2log4+y=logx+logc Using loga+logb=logab and logan=nloga, ⇒log4+y2=logxc ⇒y+32=cx, which is of the form y-k2=4ax-h…