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Write the Sum of the Order and Degree of the Differential Equation ( D 2 Y D X 2 ) 2 + ( D Y D X ) 3 + X 4 = 0 .

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Question

Write the sum of the order and degree of the differential equation

\[\left( \frac{d^2 y}{{dx}^2} \right)^2 + \left( \frac{dy}{dx} \right)^3 + x^4 = 0 .\]

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Solution

We have \[\left( \frac{d^2 y}{d x^2} \right)^2 + \left( \frac{dy}{dx} \right)^3 + x^4 = 0\]

Here,
Order = 2
Degree = 2

∴ Sum of the order and degree = 2 + 2 = 4

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2014-2015 (March) Foreign Set 2

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