a:1:{i:0;a:13:{s:2:"id";s:3:"759";s:7:"answer1";s:231:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=x_1%3D%5Cfrac%7B%5Cpi%7D%7B6%7D%2C%20x_2%3D%5Cfrac%7B5%5Cpi%7D%7B6%7D" alt="x_1=\frac{\pi}{6}, x_2=\frac{5\pi}{6}" /></p>";s:7:"answer2";s:231:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=x_1%3D%5Cfrac%7B%5Cpi%7D%7B3%7D%2C%20x_2%3D%5Cfrac%7B2%5Cpi%7D%7B3%7D" alt="x_1=\frac{\pi}{3}, x_2=\frac{2\pi}{3}" /></p>";s:7:"answer3";s:231:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=x_1%3D%5Cfrac%7B%5Cpi%7D%7B6%7D%2C%20x_2%3D%5Cfrac%7B7%5Cpi%7D%7B6%7D" alt="x_1=\frac{\pi}{6}, x_2=\frac{7\pi}{6}" /></p>";s:7:"answer4";s:231:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=x_1%3D%5Cfrac%7B%5Cpi%7D%7B3%7D%2C%20x_2%3D%5Cfrac%7B4%5Cpi%7D%7B3%7D" alt="x_1=\frac{\pi}{3}, x_2=\frac{4\pi}{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:"1000000000";s:8:"question";s:4:"2019";}}