// Numbas version: finer_feedback_settings
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rowspan=\"3\">\\[ Av=\\left( \\begin{matrix}  \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\end{matrix} \\right.\\]</td>\n      \n      <td> [[0]] </td>\n      \n      <td rowspan=\"3\">\\[\\left) \\begin{matrix} \\phantom{.} \\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\  \\end{matrix} \\right.\\] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[1]] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[2]] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td rowspan=\"3\">\\[ Bw=\\left( \\begin{matrix}  \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\end{matrix} \\right.\\]</td>\n      \n      <td> [[3]] </td>\n      \n      <td rowspan=\"3\">\\[\\left) \\begin{matrix} \\phantom{.} \\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\  \\end{matrix} \\right.\\] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[4]] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[5]] </td>\n      \n      </tr>\n      \n      </table>\n      \n      \n      \n      <table>\n      \n      <tr>\n      \n      <td rowspan=\"3\">\\[BA=\\left( \\begin{matrix}  \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\end{matrix} \\right.\\]</td>\n      \n      <td> [[6]] </td>\n      \n      <td> [[7]] </td>\n      \n      <td> [[8]]  </td>\n      \n      <td rowspan=\"3\">\\[\\left) \\begin{matrix} \\phantom{.} \\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\  \\end{matrix} \\right.\\] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[9]] </td>\n      \n      <td> [[10]] </td>\n      \n      <td> [[11]] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[12]] </td>\n      \n      <td> [[13]] </td>\n      \n      <td> [[14]] </td>\n      \n      </tr>\n      \n      </table>\n      \n      \n      \n      <table>\n      \n      <tr>\n      \n      <td rowspan=\"3\">\\[AB=\\left( \\begin{matrix}  \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\end{matrix} \\right.\\]</td>\n      \n      <td> [[15]] </td>\n      \n      <td> [[16]] </td>\n      \n      <td> [[17]]  </td>\n      \n      <td rowspan=\"3\">\\[\\left) \\begin{matrix} \\phantom{.} \\\\ \\phantom{.}\\\\ \\phantom{.}\\\\ \\phantom{.}\\\\  \\end{matrix} \\right.\\] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[18]] </td>\n      \n      <td> [[19]] </td>\n      \n      <td> [[20]] </td>\n      \n      </tr>\n      \n      <tr>\n      \n      <td> [[21]] </td>\n      \n      <td> [[22]] </td>\n      \n      <td> [[23]] </td>\n      \n      </tr>\n      \n      </table>\n      \n      \n        \n      ", "variableReplacements": [], "scripts": {}, "marks": 0}, {"variableReplacementStrategy": "originalfirst", "gaps": [{"variableReplacementStrategy": "originalfirst", "layout": {"type": "all", "expression": ""}, "type": "m_n_x", "maxMarks": 0, "warningType": "none", "showCorrectAnswer": true, "showFeedbackIcon": true, "variableReplacements": [], "scripts": {}, "marks": 0, "displayType": "radiogroup", "choices": ["<p>$CD$</p>", "<p>$DC$</p>", "<p>$EF$</p>", "<p>$FE$</p>", "<p>$BC$</p>", "<p>$AE$</p>", "<p>$GH$</p>", "<p>$HE$</p>", "<p>$AG$</p>", "<p>$GB$</p>"], "maxAnswers": 0, "shuffleChoices": true, "minAnswers": 0, "matrix": "v", "answers": ["<strong>Can be calculated</strong>", "<strong>Cannot be calculated</strong>"], "shuffleAnswers": false, "minMarks": 0}], "showCorrectAnswer": true, "showFeedbackIcon": true, "type": "gapfill", "prompt": "<p>Consider the following matrices together with the matrices from the first part of the question.</p>\n        <p>\\[\\begin{eqnarray}&amp;C=&amp; \\var{mac},\\;\\;\\;\\; &amp;D=&amp; \\var{mad},\\;\\;\\; \\;&amp;E= &amp;\\var{mae}\\\\&amp;F=&amp; \\left(\\begin{array}{rr} \\var{w1} &amp; \\var{a12}\\\\ \\var{w2} &amp; \\var{b23} \\\\ \\var{w3} &amp; \\var{w2} \\\\\\var{v1} &amp; \\var{b12}\\\\ 0 &amp; 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The minimum mark you can get is 0.</strong></p>", "variableReplacements": [], "scripts": {}, "marks": 0}], "variablesTest": {"maxRuns": 100, "condition": ""}, "variables": {"c12": {"description": "", "definition": "random(1..3)", "name": "c12", "templateType": "anything", "group": "Ungrouped variables"}, "b23": {"description": "", "definition": "random(1,2)", "name": "b23", "templateType": "anything", "group": "Ungrouped variables"}, "a13": {"description": "", "definition": "random(1..2)", "name": "a13", "templateType": "anything", "group": "Ungrouped variables"}, "c13": {"description": "", "definition": "random(1..2)", "name": "c13", "templateType": "anything", "group": "Ungrouped variables"}, "b31": {"description": "", "definition": "random(1..3)", "name": "b31", "templateType": "anything", "group": "Ungrouped variables"}, "ab12": {"description": "", "definition": "a11*b12+a12*b22+a13*b32", "name": "ab12", "templateType": "anything", "group": "Ungrouped variables"}, "s7": 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"anything", "group": "Ungrouped variables"}, "b11": {"description": "", "definition": "random(0,1)", "name": "b11", "templateType": "anything", "group": "Ungrouped variables"}, "u": {"description": "", "definition": "random(3..4)", "name": "u", "templateType": "anything", "group": "Ungrouped variables"}, "a23": {"description": "", "definition": "random(-2..2)", "name": "a23", "templateType": "anything", "group": "Ungrouped variables"}, "ba32": {"description": "", "definition": "b31*a12+b32*a22+b33*a32", "name": "ba32", "templateType": "anything", "group": "Ungrouped variables"}, "p2": {"description": "", "definition": "a21*v1+a22*v2+a23*v3", "name": "p2", "templateType": "anything", "group": "Ungrouped variables"}, "p1": {"description": "", "definition": "a11*v1+a12*v2+a13*v3", "name": "p1", "templateType": "anything", "group": "Ungrouped variables"}, "s3": {"description": "", "definition": "if(s=5,0.5,-0.5)", "name": "s3", "templateType": "anything", "group": "Ungrouped variables"}, 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