limits help!!! ok im going to try my best to express these problems because I dont really know how to get some of these symbols. If someone knows how to represent these: infinity radical please tell me. On to the problems (we need to find the limit): 1) lim x / radical(x^2-x) x-> -infinity I basically tried multiplying the denom. to the denom and num to get rid of the radical. But then what? 2) I don't really understand these sin cos things (again find limit). a) lim (x-cosx)/x x-> infinity b) lim 1/(2x+sinx) x-> infinity c) lim cos(1/x) x-> infinity d) lim (sin2x)/x x-> infinity I don't need all of these to be done, just choose which one u think is the easiest to explain and explain the best u can to me. thank you.