PSA: The past couple of days, I've noticed an increased flux in homework questions showing little to no effort, and/or people asking us to check their work on elementary problems. As a reminder, when you see something like that, the best thing to do is flag it (or vote to close) as too localized. You can also leave a helpful comment, downvote, and/or edit to make sure the
homework tag and any other appropriate tags are on the question.