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प्रश्न
The order of the differential equation of all circles of given radius a is ______.
विकल्प
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उत्तर
The order of the differential equation of all circles of given radius a is 2.
Explanation:
Let the equation of given family be (x – h)2 + (y – k)2 = a2.
It has two orbitrary constants h and k.
Threrefore, the order of the given differential equation will be 2.
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