Got a couple questions please help!! 1. lim n>inf (x^4)/(e^(-2x)) How do you do this one??? i know you use L hospital rule but you can never get rid of the denominator. or is there a trick i am missing??? 2. Determine whether the sequences are increasing, decreasing, or not monotonic. 1.(cos(x))/(3^x) 2.(x-3)/(x+3) 3.1/(3x+6) can you explain what to do with this one???