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August 1, 2015

Homework Help: CALCULUS: PLEASE HELP ME !!!!!

Posted by Anonymous on Saturday, March 21, 2009 at 11:41pm.

PlEASE HELP ME!!! I WOULD GREATLY APPRECIATE IT!!!!
Find the least upper bound (if it exists) and the greatest lower
bound (if it exists) for the given set.
Please show all work.

(0, 2)
(−∞, 1)
{x : x2 < 4}
{x : x4 ≤ 16}
{5/2,7/3,9/4}
{0. 9, 0. 99, 0. 999, . . .}
{x : lnx > 0}
{x : x2 + x − 1 < 0}
{x : |x − 1| > 2}
{x : sin x ≥ −1}

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