3 Answered Questions for the topic Open

Open Math Topology

12/27/19

Why are there two definitions of "open"?
I am learning topology, and I don't understand about an open set.So I learned a definition of open set.A subset U of M is called open (with respect to d) if for every x ∈ U there exists a real... more
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08/05/19

One of my Ai CS6 file suddenly won't open anymore?
So I have about 20-30 illustrator files in a folder (mainly mock-ups for a website), all in .ai format, working on CS6.This morning I tried opening the last one I was working on but it display the... more
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06/15/14

Find the average or mean slope of the function on this interval
Consider the function f(x)=6-7x2 on the interval [-4,5].  Find the average or mean slope of the function on this interval (f(5)-f(-4))/(5-(-4))= By the Mean Value Theorem, we know there exists a... more
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