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An equation whose highest derivative is the second has order:
AFour
BZero
CTwo
DOne
Answer & Solution
Correct answer: C. Two
1. The order is read off the highest derivative present.
2. Here the second derivative is the highest one.
3. So the order of the equation is two.
_Source: NCERT Class 12 Mathematics Part II, Chapter 9, Differential Equations._
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