 Hi and welcome to the session. Let us discuss the following question. Question says, for each of the differential equations given below, indicate its order and degree. Given differential equation is, cube of dy upon dx minus 4 multiplied by square of dy upon dx plus 7y is equal to sin x. Let us now start with the solution. Now given differential equation is, cube of dy upon dx minus 4 multiplied by square of dy upon dx plus 7y is equal to sin x. Now first of all we will find order of this differential equation. Now we know order of a differential equation is the order of the highest order derivative occurring in the differential equation. In this differential equation, highest order derivative is dy upon dx. So, we can say order of this given differential equation is 1. Now we can write the highest order derivative present in the given differential equation is dy upon dx. So, its order is 1. Now let us discuss about degree of this differential equation. Now we know degree of a differential equation is defined if it is a polynomial equation in its derivatives. Now clearly we can see this is a polynomial equation in dy upon dx and y. So, its degree is defined and we also know that degree of a differential equation is the highest power of the highest order derivative. Now we know highest order derivative in this equation is dy upon dx and highest power of dy upon dx is 3. So, degree of this differential equation is 3. Now we can write given differential equation is a polynomial equation in dy upon dx and y. And the highest power raised to dy upon dx is 3. So, its degree is 3. So our required answer is order of the given differential equation is 1 and degree of the given differential equation is 3. This completes the session. Hope you understood the solution. Take care and have a nice day.