<item ident="C4-5644" title="C4 | Homogeneous second-order linear IVP | ver. 5644"> <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?25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15" alt="25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15" title="25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15" data-latex="25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15"/> </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?-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3" alt="-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3" title="-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3" data-latex="-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3"/> </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?25%20%5C,%20%7Bx%7D%20+%20%7Bx''%7D%20=%200%20%5Chspace%7B2em%7D%20%7Bx%7D%20(0)=%20-5%20,%20%7Bx%7D%20'(0)=%20-15" alt="25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15" title="25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15" data-latex="25 \, {x} + {x''} = 0 \hspace{2em} {x} (0)= -5 , {x} '(0)= -15"> </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?-3%20%5C,%20%7By%7D%20-%202%20%5C,%20%7By'%7D%20=%20-%7By''%7D%20%5Chspace%7B2em%7D%20%7By%7D%20(0)=%20-5%20,%20%7By%7D%20'(0)=%20-3" alt="-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3" title="-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3" data-latex="-3 \, {y} - 2 \, {y'} = -{y''} \hspace{2em} {y} (0)= -5 , {y} '(0)= -3"> </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} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\left(5 \, t\right)" alt="{x} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\left(5 \, t\right)" title="{x} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\left(5 \, t\right)" data-latex="{x} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\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(3 \, t\right)} - 3 \, e^{\left(-t\right)}" alt="{y} = -2 \, e^{\left(3 \, t\right)} - 3 \, e^{\left(-t\right)}" title="{y} = -2 \, e^{\left(3 \, t\right)} - 3 \, e^{\left(-t\right)}" data-latex="{y} = -2 \, e^{\left(3 \, t\right)} - 3 \, e^{\left(-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?%7Bx%7D%20=%20-5%20%5C,%20%5Ccos%5Cleft(5%20%5C,%20t%5Cright)%20-%203%20%5C,%20%5Csin%5Cleft(5%20%5C,%20t%5Cright)" alt="{x} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\left(5 \, t\right)" title="{x} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\left(5 \, t\right)" data-latex="{x} = -5 \, \cos\left(5 \, t\right) - 3 \, \sin\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?%7By%7D%20=%20-2%20%5C,%20e%5E%7B%5Cleft(3%20%5C,%20t%5Cright)%7D%20-%203%20%5C,%20e%5E%7B%5Cleft(-t%5Cright)%7D" alt="{y} = -2 \, e^{\left(3 \, t\right)} - 3 \, e^{\left(-t\right)}" title="{y} = -2 \, e^{\left(3 \, t\right)} - 3 \, e^{\left(-t\right)}" data-latex="{y} = -2 \, e^{\left(3 \, t\right)} - 3 \, e^{\left(-t\right)}"> </p> </div> </mattext> </material> </flow_mat> </itemfeedback> </item>