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UPSC NDA II 2024 Mathematics Paper

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Question Numbers: 89-90
Direction : Consider the following for the items that follow :
Let ydx + (x - y³)dy = 0 be a differential equation.

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Question : 90

Total: 120

What is the solution of the differential equation?

y⁴ + 2x = c
y⁴ + 3x = c
2xy⁴ + x = c
4xy - y⁴ = c

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