4n – 3 1 1 + + 22 1 1 Yn = 12 ... 2n 32 n2 In this exercise we will show that they are convergent. (a) Show that (xn) is eventually decreasing and bounded below. By eventually decreasing it is meant that Xn+1 < Xn, for large enough n E N. (b) Show that (yn) is increasing and bounded above.

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