a:1:{i:0;a:13:{s:2:"id";s:3:"613";s:7:"answer1";s:213:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=f'(x)%3D%20%5Cfrac%7B5%7D%7B3%5Csqrt%5B5%5D%7Bx%5E2%7D%7D" alt="f'(x)= \frac{5}{3\sqrt[5]{x^2}}" /></p>";s:7:"answer2";s:213:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=f'(x)%3D%20%5Cfrac%7B5%5Csqrt%5B5%5D%7Bx%5E2%7D%7D%7B3%7D" alt="f'(x)= \frac{5\sqrt[5]{x^2}}{3}" /></p>";s:7:"answer3";s:215:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=f'(x)%3D%20%5Cfrac%7B-3%7D%7B5%5Csqrt%5B5%5D%7Bx%5E8%7D%7D" alt="f'(x)= \frac{-3}{5\sqrt[5]{x^8}}" /></p>";s:7:"answer4";s:213:"<p><img class="latex" src="https://chart.googleapis.com/chart?cht=tx&amp;chf=a,s,000000|bg,s,FFFFFF00&amp;chl=f'(x)%3D%20%5Cfrac%7B3%7D%7B5%5Csqrt%5B5%5D%7Bx%5E8%7D%7D" alt="f'(x)= \frac{3}{5\sqrt[5]{x^8}}" /></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:"1873";}}