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The degree of the differential equati...

The degree of the differential equation `((d^2y)/(dx^2))^3+((dy)/(dx))^2+sin((dy)/(dx))+1=0` (A) 3 (B) 2 (C) 1 (D) not defined

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Answer: D) not defined

Since equation contain `sin( dy/dx )` which does not form a polynomial in derivatives.
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