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Can this differential equation be solved using separation of variables?

(dy)/(dx)=(2x+1)/(3y)
Choose 1 answer:
Yes
No

Can this differential equation be solved using separation of variables?\newlinedydx=2x+13y \frac{d y}{d x}=\frac{2 x+1}{3 y} \newlineChoose 11 answer:\newline(A) Yes\newline(B) No

Full solution

Q. Can this differential equation be solved using separation of variables?\newlinedydx=2x+13y \frac{d y}{d x}=\frac{2 x+1}{3 y} \newlineChoose 11 answer:\newline(A) Yes\newline(B) No
  1. Concept of Separation of Variables: Understand the concept of separation of variables. Separation of variables is a method to solve differential equations, where we can separate the variables xx and yy, in this case) on different sides of the equation. This is possible if we can express the equation in the form of f(y)dy=g(x)dxf(y)\,dy = g(x)\,dx, where f(y)f(y) is a function of yy only and g(x)g(x) is a function of xx only.
  2. Attempt Variable Separation: Attempt to separate the variables in the given differential equation.\newlineWe have the differential equation dydx=2x+13y\frac{dy}{dx}=\frac{2x+1}{3y}. To separate the variables, we need to bring all yy terms to one side and all xx terms to the other side. We can multiply both sides by 3y3y dydy and dxdx to get 3y3y dydy = (2x+1)(2x+1) dxdx.
  3. Check Variable Separation: Check if the variables are completely separated.\newlineAfter rearranging, we have 3ydy3y \, \text{d}y on one side and (2x+1)dx(2x+1) \, \text{d}x on the other side. This means that we have successfully separated the variables, with yy terms on one side and xx terms on the other side.
  4. Confirm Solvability: Confirm that the differential equation can be solved using separation of variables.\newlineSince we have separated the variables into the form f(y)dy=g(x)dxf(y)\,dy = g(x)\,dx, where f(y)=3yf(y) = 3y and g(x)=2x+1g(x) = 2x+1, we can conclude that the differential equation can indeed be solved using the method of separation of variables.

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