Module 11: Optimal Control and Linear Quadratic Regulators

Folder description

Please click the folder link above to access the Module 11 instructional content. Module 11 contains five video lectures that present the following topics:

  1. Introduction to Optimal Control (11A)
  2. Quadratic Optimal Control (11B)
  3. Closed-Form Optimal Feedback Control (11C)
  4. Steady-State Quadratic Optimal Control (11D)
  5. Steady-State Quadratic Optimal Control with MATLAB (11E)
Technical
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Module at a Glance ObjectivesHow to Complete This Module:

Cell description

Objectives

By the end of this module, you will be able to:

  • State a well-posed optimal control problem for closed-loop feedback control systems
  • Find the optimal controller for a well-posed optimal control problem
  • Solve a steady-state optimal control problem
  • Design a feedback control system using the linear quadratic regulator design method
  • Demonstrate how to apply Liapunov theory to assess the stability of linear optimal control solutions

How to Complete This Module:

  1. Read Chapter 8.1 – 8.2 from Ogata 2nd Edition
  2. View “Introduction to Optimal Control” (module 11A video)
  3. View “Quadratic Optimal Control” (module 11B video)
  4. View “Closed-Form Optimal Feedback Control” (module 11C video)
  5. Read Chapter 8-3 – 8-4 from Ogata 2nd Edition
  6. View “Steady-State Quadratic Optimal Control” (module 11D video)
  7. View “Steady-State Quadratic Optimal Control with MATLAB” (module 11E video)
  8. Participate in the module discussion
  9. Complete the module assignment
Technical
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text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">State a well-posed optimal control problem for closed-loop feedback control systems</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Find the optimal controller for a well-posed optimal control problem</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Solve a steady-state optimal control problem</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Design a feedback control system using the linear quadratic regulator design method</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Demonstrate how to apply Liapunov theory to assess the stability of linear optimal control solutions</li> \n </ul> \n <h3 style=\"color: #0067ac;\" id=\"anonymous_element_10\"><span style=\"font-size: small;\">How to Complete This Module:</span></h3> \n <ol style=\"font-family: 'Open Sans', sans-serif; text-shadow: none !important; letter-spacing: normal; margin: 1em 0px; padding: 0px 0px 0px 40px; border: 0px; outline: 0px; font-weight: 400; font-style: normal; font-size: small; list-style: decimal; color: #000000; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Read Chapter 8.1 – 8.2 from Ogata 2nd Edition</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; 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margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Participate in the module discussion</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Complete the module assignment</li> \n </ol> \n <p><br></p> \n</div>\n  </div>\n\n <div id=\"_9826961_1previewModule\" class=\"moduleSample\">\n </div>\n",
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text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">State a well-posed optimal control problem for closed-loop feedback control systems</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Find the optimal controller for a well-posed optimal control problem</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Solve a steady-state optimal control problem</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Design a feedback control system using the linear quadratic regulator design method</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Demonstrate how to apply Liapunov theory to assess the stability of linear optimal control solutions</li> \n </ul> \n <h3 style=\"color: #0067ac;\" id=\"anonymous_element_10\"><span style=\"font-size: small;\">How to Complete This Module:</span></h3> \n <ol style=\"font-family: 'Open Sans', sans-serif; text-shadow: none !important; letter-spacing: normal; margin: 1em 0px; padding: 0px 0px 0px 40px; border: 0px; outline: 0px; font-weight: 400; font-style: normal; font-size: small; list-style: decimal; color: #000000; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;\"> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Read Chapter 8.1 – 8.2 from Ogata 2nd Edition</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; 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font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Read Chapter 8-3 – 8-4 from Ogata 2nd Edition</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">View “Steady-State Quadratic Optimal Control” (module 11D video)</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">View “Steady-State Quadratic Optimal Control with MATLAB” (module 11E video)</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Participate in the module discussion</li> \n  <li style=\"font-family: inherit; text-shadow: none !important; letter-spacing: normal !important; margin: 0px; padding: 0px; border: 0px; outline: 0px; font-weight: inherit; font-style: inherit; font-size: 13px; display: list-item; list-style-position: outside; list-style-type: inherit;\">Complete the module assignment</li> \n </ol> \n <p><br></p> \n</div>\n  </div>\n\n <div id=\"_9826961_1previewModule\" class=\"moduleSample\">\n </div>\n",
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Readings

Cell description

This weeks readings include the following:

Ogata,K. (1995). Discrete-Time Control Systems (2nd Edition). Upper Saddle River, New Jersey. Prentice Hall.

  • Chapter 8.1 - 8.4

  Urbant, T. (2016) Digital Control and System Applications

  • Module 11A – Handouts
  • Module 11B – Handouts
  • Module 11C – Handouts
  • Module 11D – Handouts
  • Module 11E – Handouts
Technical
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Prentice Hall.</p> \n <table summary=\"Discrete-Time Control Text graphic\" border=\"0\"> \n  <tbody> \n   <tr> \n    <td class=\"nowrapCell\"><span class=\"axScoreIndicator axVtbeEmbedded image\"><span data-ally-scoreindicator=\"_103909318_2\"></span></span>\n<img src=\"https://blackboard.jhu.edu/bbcswebdav/pid-9946504-dt-content-rid-103909318_2/xid-103909318_2\" alt=\"Discrete-Time Control Systems Textbook\" title=\"Discrete-Time Control Systems Textbook\" width=\"92\" height=\"119\"> \n<span class=\"contextMenuContainer image\" style=\" display: inline;\" bb:menugeneratorurl=\"/webapps/cmsmain/webui/courses/EN.535.645.81.SU21/Screen%20Shot%202016-09-29%20at%208.36.15%20AM.png?action=details&amp;subaction=generateFileMenuItem&amp;uniq=vd00et&amp;course_id=_233190_1&amp;ctxMenuXythosId=103909318_2&amp;course_id=_233190_1\" bb:navitem=\"\" bb:contextparameters=\"\" bb:menuorder=\"openId_b7da7fcaca0242a1a13806f8171e158d,open_with_browser_b7da7fcaca0242a1a13806f8171e158d,open_with_bbdrive_b7da7fcaca0242a1a13806f8171e158d,openWebId_b7da7fcaca0242a1a13806f8171e158d,view360Id_b7da7fcaca0242a1a13806f8171e158d,*separator*,*separator*,ax-ally-placeholder_b7da7fcaca0242a1a13806f8171e158d,ax-ally-markForAxAnalysis_b7da7fcaca0242a1a13806f8171e158d,*separator*,*separator*,content_settings_b7da7fcaca0242a1a13806f8171e158d,content_editSettings_b7da7fcaca0242a1a13806f8171e158d,content_edit_b7da7fcaca0242a1a13806f8171e158d,properties_folder_b7da7fcaca0242a1a13806f8171e158d,itemcarot_managerecord_b7da7fcaca0242a1a13806f8171e158d,comments_tool_b7da7fcaca0242a1a13806f8171e158d,subscriptions_list_b7da7fcaca0242a1a13806f8171e158d,content_readfile_b7da7fcaca0242a1a13806f8171e158d,content_overwrite_b7da7fcaca0242a1a13806f8171e158d,passes_tool_b7da7fcaca0242a1a13806f8171e158d,permissions_tool_b7da7fcaca0242a1a13806f8171e158d,content_add_alignment_b7da7fcaca0242a1a13806f8171e158d,content_tracking_b7da7fcaca0242a1a13806f8171e158d,content_versions_b7da7fcaca0242a1a13806f8171e158d,*separator*,*separator*,bookmarkId_b7da7fcaca0242a1a13806f8171e158d,itemsId_b7da7fcaca0242a1a13806f8171e158d,packagesId_b7da7fcaca0242a1a13806f8171e158d,emailId_b7da7fcaca0242a1a13806f8171e158d,removeContentFolderId_b7da7fcaca0242a1a13806f8171e158d,*separator*,copyContentId_b7da7fcaca0242a1a13806f8171e158d,moveContentId_b7da7fcaca0242a1a13806f8171e158d,*separator*,removeContentId_b7da7fcaca0242a1a13806f8171e158d,*separator*,Metadata_General_b7da7fcaca0242a1a13806f8171e158d,Metadata_Dublin_Core_b7da7fcaca0242a1a13806f8171e158d,Metadata_IMS_b7da7fcaca0242a1a13806f8171e158d,Metadata_Full_IMS_b7da7fcaca0242a1a13806f8171e158d,\" bb:overwritenavitems=\"\" bb:beforeshowfunc=\"\"> <a id=\"cmlink_b7da7fcaca0242a1a13806f8171e158d\" onfocus=\"page.ContextMenu.LI(event, 'cmdiv_b7da7fcaca0242a1a13806f8171e158d',true);\" onmouseover=\"page.ContextMenu.LI(event, 'cmdiv_b7da7fcaca0242a1a13806f8171e158d',true);\" class=\"cmimg editmode jsInit   cmimg-hide\" href=\"#contextMenu\" title=\"Click for more options\"> <img src=\"/images/ci/icons/cmlink_generic.gif\" alt=\"Click for more options\" onload=\"page.ContextMenu.LI(event, 'cmdiv_b7da7fcaca0242a1a13806f8171e158d',true);\"></a> \n  </span> \n<input type=\"hidden\" name=\"103909318_2_fileReadWritePermAvl\" id=\"103909318_2_fileReadWritePermAvl\" value=\"false\"> \n<script type=\"text/javascript\" src=\"/javascript/cdn.js\"></script> \n<script type=\"text/javascript\" src=\"/groupjs/FF147D720E72E17F96127A7085584389.js?v=3800.0.9-rel.16+8f8c3e7\"></script> \n<script type=\"text/javascript\" src=\"/webapps/cmsmain/dirlistrightframe/dirlist.js?v=3800.0.9-rel.16+8f8c3e7\"></script> \n<script type=\"text/javascript\" src=\"/webapps/cmsmain/static/bbDriveUtil.js?v=3800.0.9-rel.16+8f8c3e7\"></script> \n<script type=\"text/javascript\">\n    (function(){\n     var f = function(){\n           if ( window.DWREngine )\n      {\n       if( DWREngine._batch )\n       {\n      \t try {DWREngine.endBatch();} catch(ignore) {}\n       }\n       try {DWREngine.beginBatch();} catch(ignore) {}\n      } \n             page.ContextMenu.hideMenuDiv('b7da7fcaca0242a1a13806f8171e158d');\n            if ( window.DWREngine )\n      {\n        try {DWREngine.endBatch();} catch(ignore) {}\n      }\n               };\n     var f2 = function()\n     {\n       if ( page.isLoaded )\n       {\n         f();\n       }\n       else\n       {\n         setTimeout( f2, 500 );\n       }\n     }\n     f2();\n    })();\n   </script></td> \n    <td> \n     <ul> \n      <li>Chapter 8.1 - 8.4</li> \n     </ul> </td> \n   </tr> \n  </tbody> \n </table> \n <br> \n <p>&nbsp; Urbant, T. 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Prentice Hall.</p> \n <table summary=\"Discrete-Time Control Text graphic\" border=\"0\"> \n  <tbody> \n   <tr> \n    <td class=\"nowrapCell\"><span class=\"axScoreIndicator axVtbeEmbedded image\"><span data-ally-scoreindicator=\"_103909318_2\"></span></span>\n<img src=\"https://blackboard.jhu.edu/bbcswebdav/pid-9946504-dt-content-rid-103909318_2/xid-103909318_2\" alt=\"Discrete-Time Control Systems Textbook\" title=\"Discrete-Time Control Systems Textbook\" width=\"92\" height=\"119\"> \n<span class=\"contextMenuContainer image\" style=\" display: inline;\" bb:menugeneratorurl=\"/webapps/cmsmain/webui/courses/EN.535.645.81.SU21/Screen%20Shot%202016-09-29%20at%208.36.15%20AM.png?action=details&amp;subaction=generateFileMenuItem&amp;uniq=vd00et&amp;course_id=_233190_1&amp;ctxMenuXythosId=103909318_2&amp;course_id=_233190_1\" bb:navitem=\"\" bb:contextparameters=\"\" bb:menuorder=\"openId_b7da7fcaca0242a1a13806f8171e158d,open_with_browser_b7da7fcaca0242a1a13806f8171e158d,open_with_bbdrive_b7da7fcaca0242a1a13806f8171e158d,openWebId_b7da7fcaca0242a1a13806f8171e158d,view360Id_b7da7fcaca0242a1a13806f8171e158d,*separator*,*separator*,ax-ally-placeholder_b7da7fcaca0242a1a13806f8171e158d,ax-ally-markForAxAnalysis_b7da7fcaca0242a1a13806f8171e158d,*separator*,*separator*,content_settings_b7da7fcaca0242a1a13806f8171e158d,content_editSettings_b7da7fcaca0242a1a13806f8171e158d,content_edit_b7da7fcaca0242a1a13806f8171e158d,properties_folder_b7da7fcaca0242a1a13806f8171e158d,itemcarot_managerecord_b7da7fcaca0242a1a13806f8171e158d,comments_tool_b7da7fcaca0242a1a13806f8171e158d,subscriptions_list_b7da7fcaca0242a1a13806f8171e158d,content_readfile_b7da7fcaca0242a1a13806f8171e158d,content_overwrite_b7da7fcaca0242a1a13806f8171e158d,passes_tool_b7da7fcaca0242a1a13806f8171e158d,permissions_tool_b7da7fcaca0242a1a13806f8171e158d,content_add_alignment_b7da7fcaca0242a1a13806f8171e158d,content_tracking_b7da7fcaca0242a1a13806f8171e158d,content_versions_b7da7fcaca0242a1a13806f8171e158d,*separator*,*separator*,bookmarkId_b7da7fcaca0242a1a13806f8171e158d,itemsId_b7da7fcaca0242a1a13806f8171e158d,packagesId_b7da7fcaca0242a1a13806f8171e158d,emailId_b7da7fcaca0242a1a13806f8171e158d,removeContentFolderId_b7da7fcaca0242a1a13806f8171e158d,*separator*,copyContentId_b7da7fcaca0242a1a13806f8171e158d,moveContentId_b7da7fcaca0242a1a13806f8171e158d,*separator*,removeContentId_b7da7fcaca0242a1a13806f8171e158d,*separator*,Metadata_General_b7da7fcaca0242a1a13806f8171e158d,Metadata_Dublin_Core_b7da7fcaca0242a1a13806f8171e158d,Metadata_IMS_b7da7fcaca0242a1a13806f8171e158d,Metadata_Full_IMS_b7da7fcaca0242a1a13806f8171e158d,\" bb:overwritenavitems=\"\" bb:beforeshowfunc=\"\"> <a id=\"cmlink_b7da7fcaca0242a1a13806f8171e158d\" onfocus=\"page.ContextMenu.LI(event, 'cmdiv_b7da7fcaca0242a1a13806f8171e158d',true);\" onmouseover=\"page.ContextMenu.LI(event, 'cmdiv_b7da7fcaca0242a1a13806f8171e158d',true);\" class=\"cmimg editmode jsInit   cmimg-hide\" href=\"#contextMenu\" title=\"Click for more options\"> <img src=\"/images/ci/icons/cmlink_generic.gif\" alt=\"Click for more options\" onload=\"page.ContextMenu.LI(event, 'cmdiv_b7da7fcaca0242a1a13806f8171e158d',true);\"></a> \n  </span> \n<input type=\"hidden\" name=\"103909318_2_fileReadWritePermAvl\" id=\"103909318_2_fileReadWritePermAvl\" value=\"false\"> \n<script type=\"text/javascript\" src=\"/javascript/cdn.js\"></script> \n<script type=\"text/javascript\" src=\"/groupjs/FF147D720E72E17F96127A7085584389.js?v=3800.0.9-rel.16+8f8c3e7\"></script> \n<script type=\"text/javascript\" src=\"/webapps/cmsmain/dirlistrightframe/dirlist.js?v=3800.0.9-rel.16+8f8c3e7\"></script> \n<script type=\"text/javascript\" src=\"/webapps/cmsmain/static/bbDriveUtil.js?v=3800.0.9-rel.16+8f8c3e7\"></script> \n<script type=\"text/javascript\">\n    (function(){\n     var f = function(){\n           if ( window.DWREngine )\n      {\n       if( DWREngine._batch )\n       {\n      \t try {DWREngine.endBatch();} catch(ignore) {}\n       }\n       try {DWREngine.beginBatch();} catch(ignore) {}\n      } \n             page.ContextMenu.hideMenuDiv('b7da7fcaca0242a1a13806f8171e158d');\n            if ( window.DWREngine )\n      {\n        try {DWREngine.endBatch();} catch(ignore) {}\n      }\n               };\n     var f2 = function()\n     {\n       if ( page.isLoaded )\n       {\n         f();\n       }\n       else\n       {\n         setTimeout( f2, 500 );\n       }\n     }\n     f2();\n    })();\n   </script></td> \n    <td> \n     <ul> \n      <li>Chapter 8.1 - 8.4</li> \n     </ul> </td> \n   </tr> \n  </tbody> \n </table> \n <br> \n <p>&nbsp; Urbant, T. 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Module 11 Discussion Question 1 - Optimal Control

Cell description

How is this approach the same as or different than control system design using root-locus and/or frequency response methods?

  • You will be graded on your participation in this activity, not on the accuracy of your answer. Please share your response by Day 4 of Module 11, then provide feedback to your classmates by Day 6 of Module 11.
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Module 11 Discussion Question 2 - Weights

Cell description

After having tried a few design problems from the homework, how does the selection of weights affect the response of the system? What happens when the ratio of Q to R varies significantly? How do you change the values of Q and R to achieve good gain and phase margins?

  • You will be graded on your participation in this activity, not on the accuracy of your answer. Please share your response by Day 5 of Module 11, then provide feedback to your classmates by Day 7 of Module 11.
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Module 11 Assignment

Cell description

Please open the attachments above and complete the Problem Set.

  • As you complete this Problem Set please show all your work. When you are finished, scan the document containing your final work or take a clear and readable picture with a camera or phone. Submit your response by day 7 of Module 11.
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When you are finished, scan the document containing your final work or take a clear and readable picture with a camera or phone. <span style=\"text-decoration: underline;\">Submit your response by day 7 of Module 11.</span></li> \n </ul> \n</div>\n  </div>\n\n <div id=\"_9826966_1previewModule\" class=\"moduleSample\">\n </div>\n",
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When you are finished, scan the document containing your final work or take a clear and readable picture with a camera or phone. <span style=\"text-decoration: underline;\">Submit your response by day 7 of Module 11.</span></li> \n </ul> \n</div>\n  </div>\n\n <div id=\"_9826966_1previewModule\" class=\"moduleSample\">\n </div>\n",
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Module 11 Solutions

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