(1)L =lim(x->2 ) (x/2)^( x/(x-2) )lnL =lim(x->2 ) xln(x/2) /(x-2) (0/0)=lim(x->2 ) [ ln(x/2) + 1 ]= 1L =e^0=1ielim(x->2 ) (x/2)^( x/(x-2) ) =1(2)lim(x->0) (e^(x)- 1 )/x (0/0)=lim(x->0) e^x=1l n L是哪来的？？步骤有些看不懂L =lim(x->2 ) (x/2)^( x/(x-2) )(两边取ln)

lnL =lim(x->2 ) xln(x/2) /(x-2)(0/0)