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Use antidifferentiation and/or separation of variables to solve the given differential equations. Your answers will involve unsolved constants.

dydx=3xy

Short Answer

Expert verified

Ans: The solution of the differential equation dydx=3xyisy=Ae32x2.

Step by step solution

01

Step 1. Given information.

given,

dydx=3xy

02

Step 2. Consider the differential equation defined by equation (1) given below and solve it by using antidifferentiation and/or separation of the variable method.   

dydx=-3xy.....(1)

03

Step 3. Solution

Note that the differential equation (1) is of the form of dydx=p(x)q(y)in which p(x)=-3xand q(y)=y. So the differential equation can be solved by applying variable separable method. Separate the variables and integrate both the sides

1ydy=3xdxln|y|=32x2+Cy=e32x2+C=Ae32x2

Hence a solution to the differential equation dydx=3xyis localid="1649166959230" y=Ae32x2

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