Q. 17

Mark the correct alternative in each of the following:

The differential equation of the ellipse is




D. none of these

Answer :

Since the equation has 2 constants so we differentiate twice,

Differentiating w.r.t x


Again, differentiating w.r.t x


Substitute value of (2) in (1) we get,

Dividing both sides by y.y’ we get,

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