Q.

Order and degree of the differential equation edydx+dydx=x are:

1 order 2, degree 1  
2 order 2, degree 2  
3 order 1, degree 2  
4 order 1, degree not defined  

Ans.

(4)

Ans.    order 1, degree not defined

Explanation:

Its order is 1, but the equation cannot be expressed as a polynomial differential equation.

∴   The degree is not defined.