This site is very unprofessional. There is no concept of text formatting or even previewing your answer, especially while using math symbols. I tried to answer many questions, but in the end, I find that the answers are totally absurd because of the improper math. There isn't even an option to edit the answer. I really started hating the featureless site and decided to delete my account.
Also, most questions are improperly asked. I think this site is a waste of time for smart/brilliant students.
Bottom Line: No, I would not recommend this to a friend
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