54) Which of the following series converge? n2 + 2 a) Σ п3 — п +5 n2 + 2 b) L n5 -n+5 п5 — п n=1 00 c) E(-1)"+1 sin(-) n. n=1 d) E(-1)"+ cos(-) n=1 e) None of the above. 55) Which of the following series converge? 1 a) Σ n In(n) n=2 1 b) Ln(In(n))² n=2 1 c) E(-1)": n In(n) n=2 d) E-1)" n(In(n))² 1 n=2 e) None of the above.

the graph of f(x) is shown f(x)=(x^(2)+2x-3)/(x^(2)+4x-5) what is the limt of \lim_(x->\infty )f(x)? A; -5 B, 0 C, 1 D, \infty

Determine the number of ways to arrange 20 math textbooks (no duplicates) on a shelf. Please show the steps on how to solve it.

You wrote 5 instead of 15