a:1:{i:0;a:13:{s:2:"id";s:3:"483";s:7:"answer1";s:374:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccap%20B%20%3D%20%5C%7B2%2C3%5C%7D" alt="A \cap B = \{2,3\}" />, <img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccup%20B%20%3D%20%5C%7B2%2C3%2C4%2C5%5C%7D" alt="A \cup B = \{2,3,4,5\}" /></p>";s:7:"answer2";s:374:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccap%20B%20%3D%20%5C%7B2%2C3%2C4%2C5%5C%7D" alt="A \cap B = \{2,3,4,5\}" />, <img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccup%20B%20%3D%20%5C%7B2%2C3%5C%7D" alt="A \cup B = \{2,3\}" /></p>";s:7:"answer3";s:350:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccap%20B%20%3D%20%5C(1%3B5%5C%3E" alt="&quot;A" />, <img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccup%20B%20%3D%20%5C%3C2%2C4%5C)" alt="A \cup B = \&lt;2,4\)" /></p>";s:7:"answer4";s:350:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccap%20B%20%3D%20%5C%3C2%3B4%5C)" alt="A \cap B = \&lt;2;4\)" />, <img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=A%20%5Ccup%20B%20%3D%20%5C(1%2C5%5C%3E" alt="&quot;A" /></p>";s:7:"answer5";s:0:"";s:7:"answer6";s:0:"";s:7:"answer7";s:0:"";s:7:"answer8";s:0:"";s:7:"answer9";s:0:"";s:8:"answer10";s:0:"";s:4:"good";s:10:"0001000000";s:8:"question";s:4:"1743";}}