Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
Download
20865 views
1
2
\begin{exerciseStatement}
3
4
5
Explain what the Existence and Uniqueness Theorem for First Order IVPs guarantees about the existence and uniqueness of solutions for the following IVP.
6
7
\[
8
y'= 6 \, {\left(2 \, {y} - 3 \, t - 5\right)}^{\frac{1}{3}} \hspace{2em}
9
x( -5 )= -5 \]
10
\end{exerciseStatement}
11
12
\begin{exerciseAnswer}
13
14
15
\(F(t,y)= 6 \, {\left(2 \, {y} - 3 \, t - 5\right)}^{\frac{1}{3}} \) is continuous at and nearby the initial value so a solution exists for a nearby interval.
16
17
18
19
\(F_y= \frac{4}{{\left(2 \, {y} - 3 \, t - 5\right)}^{\frac{2}{3}}} \) is not continous (or even defined) at the initial value so the guaranteed solution may not be unique.
20
21
22
\end{exerciseAnswer}
23
24
25