One of our instructor's strategies for dealing with sites like Chegg that cater to homework answer-copiers: seek out and assign homework questions that already have particularly bad answers on Chegg. That way the copiers are more easily caught and the students who actually do the work have a better chance to shine over their copying peers. And if doing this ends up causing Chegg to get more of a reputation for inaccuracy, that's not a bad thing either.
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