都已经知道用洛必达法则了,还用求助?翻翻书,依样画葫芦不会?为你做一道: 5)g.e. = lim(x→1)(xlnx-x+1)/[(x-1)lnx] (0/0) = lim(x→1)lnx/[lnx+(x-1)/x] = lim(x→1)xlnx/[xlnx+(x-1)] (0/0) = lim(x→1)(lnx+1)/(lnx+1+1) = 1/2。
哪里道题?