Show that if (xn), (yn), (zn) are convergent sequences, then the sequence (wn) defined
Chapter 3, Problem 17(choose chapter or problem)
Show that if (xn), (yn), (zn) are convergent sequences, then the sequence (wn) defined by Wn := mid{xn , yn ,z n }is also convergent. (See Exercise 2.2.17.)
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