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Last edited by Aquameatwad; Oct 13th 2011 at 08:12 PM.
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Draw five number lines one under another so that their origins are on the same vertical line, and draw on them. Then try to guess which points belong to all 's.
so as we go from 1 to infinity, the lim of n as n goes to infinity is 1/∞=0. Using this, the union would be CN= [0, 3) The intersection of CN = [1, 2) What do you think?
Originally Posted by Aquameatwad so as we go from 1 to infinity, the lim of 1 / n as n goes to infinity is 1/∞=0. Using this, the union would be CN= [0, 3) The intersection of CN = [1, 2) I don't see the original problem anymore, so I am not sure. However, I think the right end of was , so 2 belongs to all .
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