<item ident="C4-1809" title="C4 | Homogeneous second-order linear IVP | ver. 1809"> <itemmetadata> <qtimetadata> <qtimetadatafield> <fieldlabel>question_type</fieldlabel> <fieldentry>essay_question</fieldentry> </qtimetadatafield> </qtimetadata> </itemmetadata> <presentation> <material> <mattextxml> <div class="exercise-statement"> <p> <strong>C4.</strong> </p> <p>Explain how to find the particular solution to each given IVP.</p> <ol type="a"> <li> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0" alt="-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0" title="-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0" data-latex="-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0"/> </p> </li> <li> <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} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13" alt="2 \, {y} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13" title="2 \, {y} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13" data-latex="2 \, {y} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13"/> </p> </li> </ol> </div> </mattextxml> <mattext texttype="text/html"><div class="exercise-statement"> <p> <strong>C4.</strong> </p> <p>Explain how to find the particular solution to each given IVP.</p> <ol type="a"> <li> <p style="text-align:center;"> <img style="border:1px #ddd solid;padding:5px;border-radius:5px;" src="https://latex.codecogs.com/svg.latex?-%7Bx''%7D%20=%204%20%5C,%20%7Bx%7D%20%5Chspace%7B2em%7D%20%7Bx%7D%20(0)=%20-4%20,%20%7Bx%7D%20'(0)=%200" alt="-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0" title="-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0" data-latex="-{x''} = 4 \, {x} \hspace{2em} {x} (0)= -4 , {x} '(0)= 0"> </p> </li> <li> <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-%7By''%7D%20+%203%20%5C,%20%7By'%7D%20%5Chspace%7B2em%7D%20%7By%7D%20(0)=%20-8%20,%20%7By%7D%20'(0)=%20-13" alt="2 \, {y} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13" title="2 \, {y} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13" data-latex="2 \, {y} = -{y''} + 3 \, {y'} \hspace{2em} {y} (0)= -8 , {y} '(0)= -13"> </p> </li> </ol> </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} = -4 \, \cos\left(2 \, t\right)" alt="{x} = -4 \, \cos\left(2 \, t\right)" title="{x} = -4 \, \cos\left(2 \, t\right)" data-latex="{x} = -4 \, \cos\left(2 \, 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} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}" alt="{y} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}" title="{y} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}" data-latex="{y} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}"/> </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?%7Bx%7D%20=%20-4%20%5C,%20%5Ccos%5Cleft(2%20%5C,%20t%5Cright)" alt="{x} = -4 \, \cos\left(2 \, t\right)" title="{x} = -4 \, \cos\left(2 \, t\right)" data-latex="{x} = -4 \, \cos\left(2 \, 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?%7By%7D%20=%20-5%20%5C,%20e%5E%7B%5Cleft(2%20%5C,%20t%5Cright)%7D%20-%203%20%5C,%20e%5E%7Bt%7D" alt="{y} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}" title="{y} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}" data-latex="{y} = -5 \, e^{\left(2 \, t\right)} - 3 \, e^{t}"> </p> </div> </mattext> </material> </flow_mat> </itemfeedback> </item>