please give eloborative soulutions thank you

> 1 a) Show that 60+5tc o (n) for non-negative integern ? (Pront) b) use the l's Hospital's rule to show that no Eo (2) for non-negative integern c) for a 1, show that lim aln = 1 with n taking positive inteqora. (hooor)" integerrila 1 within taking positive integers I show that li (proof): c) show that encom) bor non-negative integern (Pappt 2 (f) let a=log 3 and b= log 5. How to represent the expression log 15 in terms of a and be (robota: solution: 9) Given a 5-element array, how many comparisons do you need to find the median? 2 Solution need or 3 optimal solution for this