Practicing Success
What is the degree of the differential equation $(\frac{d^2y}{dx^2})^2+\cos(\frac{dy}{dx})=0$? |
1 2 undefined 3 |
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Since the differential equation is not a polynomial in $\frac{d^2y}{dx^2}$ and $\frac{dy}{dx}$, the degree is not well defined. |