A) \[2\]
B) \[3\]
C) \[4\]
D) None of these
Correct Answer: B
Solution :
The general equation of all conies whose centre lie at the origin is \[a{{x}^{2}}+2hxy+b{{y}^{2}}=1\] Clearly, it has three arbitrary constants. So, the differential equation will be of order\[3\].
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