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Question: c and d please...

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C) and d) please!
open in E. 8.3.7. a) If A and B are connected in Rn and A n B ø, prove that A U B is b) If {Ealae, is a collection of connected sets in Rn and ηαΕΑΕα Ø, connected prove that is connected c) If A and B are connected in R and A nB , prove that AnB IS d) Show that part c) is no longer true if R2 replaces R connected.
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