a:1:{i:0;a:13:{s:2:"id";s:3:"469";s:7:"answer1";s:209:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cbigwedge_x%20%7Cx%7C%20%5Cgeq%20%5Csqrt%7Bx%5E2%7D" alt="\bigwedge_x |x| \geq \sqrt{x^2}" /></p>";s:7:"answer2";s:209:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cbigwedge_x%20%7Cx%7C%20%5Cneq%20%5Csqrt%7Bx%5E2%7D" alt="\bigwedge_x |x| \neq \sqrt{x^2}" /></p>";s:7:"answer3";s:205:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cbigvee_x%20%7Cx%7C%20%5Cneq%20%5Csqrt%7Bx%5E2%7D" alt="\bigvee_x |x| \neq \sqrt{x^2}" /></p>";s:7:"answer4";s:191:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=%5Cbigvee_x%20%7Cx%7C%3D%5Csqrt%7Bx%5E2%7D" alt="\bigvee_x |x|=\sqrt{x^2}" /></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:"1729";}}