limn • ln
n-foo
n+ 1 1
lim ln
l'n+ ly
n-*co
n — 1 n^cc \n — 1 m - 1 + 2 yj limln(l+—?—
\n - 1 n-lJ ^ -1
= lim lne n_1 = 1
n
lim-—
n^co n — 1
5
lim
n-*oo
łt
1
= 1