Maximal interval of existence of the initial value problem
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Please solve the following initial value problem:
dx/dt = x^2 - 4, x(0) = 0.
and find the maximal interval of existence of the solution.
We solve the initial value problem using separation of variables. We use partial fractions to solve for the integral of 1/(x^2-4).
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Solution Summary
Given the first order differential equation, dx/dt = x^2 - 4, x(0) = 0, we solve it using separation of variables and find the maximal interval of existence of the solution.
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The differential equation is separable. We write
dx/dt = x^2 - 4
and follow the method for separable equations
dx/(x^2-4)=dt
Now integrate both sides (integral denoted as int)
int dx/(x^2-4)= int dt.
Now int dt=t+C, and int dx/(x^2-4) can be solved by partial ...
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