<item ident="S2-1382" title="S2 | Linear ODE system with elimination | ver. 1382"> <itemmetadata> <qtimetadata> <qtimetadatafield> <fieldlabel>question_type</fieldlabel> <fieldentry>essay_question</fieldentry> </qtimetadatafield> </qtimetadata> </itemmetadata> <presentation> <material> <mattextxml> <div class="exercise-statement"> <p> <strong>S2.</strong> </p> <p>Find the solution to the given system of IVPs.</p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1" alt="2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1" title="2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1" data-latex="2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1"/> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 1" alt="-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 1" title="-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 1" data-latex="-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 1"/> </p> </div> </mattextxml> <mattext texttype="text/html"><div class="exercise-statement"> <p> <strong>S2.</strong> </p> <p>Find the solution to the given system of IVPs.</p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?2%20%5C,%20%7By%7D%20=%20-4%20%5C,%20%7Bx%7D%20+%20%7Bx'%7D%20%5Chspace%7B2em%7Dx(0)=%20-1" alt="2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1" title="2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1" data-latex="2 \, {y} = -4 \, {x} + {x'} \hspace{2em}x(0)= -1"> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?-2%20%5C,%20%7Bx%7D%20=%20-9%20%5C,%20%7By%7D%20+%20%7By'%7D%20%5Chspace%7B2em%7Dx(0)=%201" alt="-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 1" title="-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 1" data-latex="-2 \, {x} = -9 \, {y} + {y'} \hspace{2em}x(0)= 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?x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}" alt="x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}" title="x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}" data-latex="x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}"/> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}" alt="y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}" title="y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}" data-latex="y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}"/> </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?x=%20e%5E%7B%5Cleft(8%20%5C,%20t%5Cright)%7D%20-%202%20%5C,%20e%5E%7B%5Cleft(5%20%5C,%20t%5Cright)%7D" alt="x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}" title="x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}" data-latex="x= e^{\left(8 \, t\right)} - 2 \, e^{\left(5 \, t\right)}"> </p> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?y=%202%20%5C,%20e%5E%7B%5Cleft(8%20%5C,%20t%5Cright)%7D%20-%20e%5E%7B%5Cleft(5%20%5C,%20t%5Cright)%7D" alt="y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}" title="y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}" data-latex="y= 2 \, e^{\left(8 \, t\right)} - e^{\left(5 \, t\right)}"> </p> </div> </mattext> </material> </flow_mat> </itemfeedback> </item>