<item ident="X2-7892" title="X2 | Existence/uniqueness theorem for linear IVPs | ver. 7892"> <itemmetadata> <qtimetadata> <qtimetadatafield> <fieldlabel>question_type</fieldlabel> <fieldentry>essay_question</fieldentry> </qtimetadatafield> </qtimetadata> </itemmetadata> <presentation> <material> <mattextxml> <div class="exercise-statement"> <p> <strong>X2.</strong> </p> <p> Find the largest interval for which the Existence and Uniqueness Theorem for Linear IVPs guarantees a unique solution for the following IVP. </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1" alt="{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1" title="{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1" data-latex="{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1"/> </p> </div> </mattextxml> <mattext texttype="text/html"><div class="exercise-statement"> <p> <strong>X2.</strong> </p> <p> Find the largest interval for which the Existence and Uniqueness Theorem for Linear IVPs guarantees a unique solution for the following IVP. </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?%7B%5Cleft(t%20+%205%5Cright)%7D%20t%20%7By'''%7D%20=%20-t%5E%7B2%7D%20-%20%7B%5Cleft(t%20-%205%5Cright)%7D%20y%20-%204%20%5C,%20%7By''%7D%20-%2016%20%5Chspace%7B2em%7D%20x(%20-1%20)=%201" alt="{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1" title="{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1" data-latex="{\left(t + 5\right)} t {y'''} = -t^{2} - {\left(t - 5\right)} y - 4 \, {y''} - 16 \hspace{2em} x( -1 )= 1"> </p> </div> </mattext> </material> <response_str ident="response1" rcardinality="Single"> <render_fib> <response_label ident="answer1" rshuffle="No"/> </render_fib> </response_str> </presentation> <itemfeedback ident="general_fb"> <flow_mat> <material> <mattextxml> <div class="exercise-answer"> <h4>Partial Answer:</h4> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?(-5,0)" alt="(-5,0)" title="(-5,0)" data-latex="(-5,0)"/> </p> </div> </mattextxml> <mattext texttype="text/html"><div class="exercise-answer"> <h4>Partial Answer:</h4> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?(-5,0)" alt="(-5,0)" title="(-5,0)" data-latex="(-5,0)"> </p> </div> </mattext> </material> </flow_mat> </itemfeedback> </item>