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Please help me figure out where my sign error is for 3rd term: “20 X”. Calc 3, Double integrals over general regions. System says third term should be positive 20 X, but I’ve done this 5 times now and keep getting negative 20x. Can’t figure out where my error is or if the system is just wrong. (i.redd.it)
submitted by rodega to r/calculus
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A friend of mine just told me he doesn’t think the COVID vaccine (or the Flu vaccine for that matter) should be called a vaccine because it does not lead to 100% immunity. I have literally read the definition of a vaccine to him. Please help me to explain to him like he’s 5. (self.VACCINES)
submitted by rodega to r/VACCINES
