1.

The differential equation \(\rm {\left(dy\over dx\right)}^2 - xy = x^3y^4\)1. Linear of degree 4 and order 32. Non-linear of degree 2 and order 13. Linear of degree 2 and order 14. Non-linear of degree 4 and order 3

Answer» Correct Answer - Option 2 : Non-linear of degree 2 and order 1

Concept:

The order of a differential equation is the order of the highest derivative appearing in it.

The degree of a differential equation is the degree of the highest derivative occurring in it, after the equation has been expressed in a form free from radicals as far as the derivatives are concerned.

A differential equation is said to be linear when

  • Dependent variable and its derivative should have power ‘1’.
  • Dependent variable and its derivatives can have product with independent variable.
  • Dependent variable and its derivatives can’t have product.

Calculation:

Given differential equation is

\(\rm {\left(dy\over dx\right)}^2 - xy = x^3y^4\)

Here x is the independent variable

y is the dependent variable

Highest derivate is \(\rm dy\over dx\)

So, the order of the given differential equation = 1

The power of the highest derivate = 2

So, the degree of the given differential equation = 2

As the power of  is 2 it is non-linear


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