a:1:{i:0;a:13:{s:2:"id";s:3:"530";s:7:"answer1";s:151:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=(-%5Cinfty%3B0)" alt="(-\infty;0)" /></p>";s:7:"answer2";s:199:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5C(%20%5Cfrac%7B1%7D%7B3%7D%3B%20%5Cinfty%20%5C)" alt="\( \frac{1}{3}; \infty \)" /></p>";s:7:"answer3";s:235:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=(-%5Cinfty%3B0)%20%5Ccup%20%5C(%5Cfrac%7B1%7D%7B3%7D%3B%5Cinfty%20%5C)" alt="(-\infty;0) \cup \(\frac{1}{3};\infty \)" /></p>";s:7:"answer4";s:175:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5C(0%3B%5Cfrac%7B1%7D%7B3%7D%5C)" alt="\(0;\frac{1}{3}\)" /></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:"0010000000";s:8:"question";s:4:"1790";}}