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Help with closed intervals?
I need some help with a math problem:
Suppose A=[a1, a2] and B=[b1,b2] are two closed intervals of R (real numbers).
Under what conditions is A U B (A union B) a closed interval?
This seems like an extremely simple problem, but i'm not entirely sure how to answer it.
Thanks in advance!
1 Answer
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- Anonymous8 years agoFavorite Answer
summer maths 108 ? lol I think is a closed interval as long as A and B are closed intervals?
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