question_answer

The degree of the differential equation \[{{\left( \frac{{{d}^{2}}y}{d{{x}^{2}}} \right)}^{2}}+{{\left( \frac{dy}{dx} \right)}^{2}}=x\sin \left( \frac{{{d}^{2}}y}{dx} \right)\]is:

A)  1                                            

B)  2

C)  3                                            

D)  none of these