Chegg is not a useful tool for revision with higher-level questions. While sometimes a question may be answered with the correct method, there is an obvious lack of experience from 'experts', as there is a lack of care around units and overall understanding of questions. Most of the time, however, the question is answered using the wrong method, sometimes with a method used in year 1 instead of 3. Further, most questions i have uploaded are past papers, to be used for revision, these are frequently taken down, by clear ai moderation.Bottom line, do not use