The differential equation 2ydx - (3y - 2x)dy = 0a)exact, homogeneous a...
To determine whether the given differential equation is exact, homogeneous, and linear, we need to understand the definitions and characteristics of these types of equations.
1. Exact Differential Equation:
An exact differential equation is of the form M(x,y)dx + N(x,y)dy = 0, where M and N are continuous functions defined on some open region in the xy-plane. It satisfies the condition ∂M/∂y = ∂N/∂x.
2. Homogeneous Differential Equation:
A homogeneous differential equation is of the form M(x,y)dx + N(x,y)dy = 0, where M and N are homogeneous functions of the same degree. A function f(x,y) is homogeneous of degree n if f(tx,ty) = t^n * f(x,y) for all t ≠ 0.
3. Linear Differential Equation:
A linear differential equation is of the form dy/dx + P(x)y = Q(x), where P(x) and Q(x) are functions of x.
Now, let's examine the given equation 2ydx - (3y - 2x)dy = 0.
1. Exactness:
To check for exactness, we need to compare the coefficients of dx and dy with the partial derivatives of M and N. Let's find the partial derivatives:
∂M/∂y = 0
∂N/∂x = 0
Since ∂M/∂y is not equal to ∂N/∂x, the given equation is not exact.
2. Homogeneity:
To check for homogeneity, we need to determine whether M and N are homogeneous functions of the same degree. Let's check the degree of each term:
Degree of 2ydx = 1
Degree of (3y - 2x)dy = 2
Since the degrees are different, the given equation is not homogeneous.
3. Linearity:
To check for linearity, we need to determine whether the equation is in the form dy/dx + P(x)y = Q(x). Let's rearrange the equation:
- (3y - 2x)dy = -2ydx
3ydy - 2xdy = -2ydx
The equation is not in the required form, so it is not linear.
Therefore, based on the characteristics of exact, homogeneous, and linear differential equations, the given equation 2ydx - (3y - 2x)dy = 0 is not exact, not homogeneous, and not linear. Hence, the correct answer is option 'A'.
The differential equation 2ydx - (3y - 2x)dy = 0a)exact, homogeneous a...
Option c is correct, this equation is not homogenous.