What is the degree of the differential equation d^3y dx^3 + ( dy dx )^2-x^2 ( d^4y dx^4 )=0?

NDA 2019 Mathematics question

What is the degree of the differential equation ?

Answer: (A)

The highest-order derivative is , and it occurs to the first power. Hence the degree is 1 (the order is 4).

Question ID VK-029125