Find remaining and proper Riemann sums for dust accumulation. Report answers utilizing sigma notation, the place the expression inside of the sigma symbo is suppose to be an explicit functionality of the index k of summation . = 很多同学并非真的投入精力不够造成作业不能及时完成，而是没有找到合适的方法。您需要第一时间收集所有关于作业的要求和资料，这些内容可能来自学校的handbook或老师的讲... https://bookmarklethq.com/story12752851/%E8%AE%BA%E6%96%87%E4%BB%A3%E5%86%99-no-further-a-mystery