Cot^3x/cscx=cosx(csc^2x-1) I need help verifying the identity if you can please show me the steps I will appreciate it.

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Which of the following is the correct ratio for converting kilograms to grams

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.