NDA 2021 Mathematics question

What is the order of the differential equation of all ellipses whose axes are along the coordinate axes?

(A)1
(B)2Correct
(C)3
(D)4

Answer: (B)

Solution

Ellipses whose axes are along the coordinate axes have the equation , which contains two arbitrary constants and . The order of the differential equation of a family

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Question ID VK-033697