Question

如何求极限?我现在很郁闷的!有道题不太懂,

Answer 1

1.x->1+ 指 x>1 且 x->1,求x=1 点的右极限

x->1+,10^(1/1-x)] - > 10^(-∞)=0

limf(x)=lim[2+10^(1/1-x)] = 2

x->1+

2.x->1- 指 x1,求x=1 点的左极限

x->1-,10^(1/1-x)] - > 10^(+∞)=+∞

limf(x)=lim[2+10^(1/1-x)] = +∞

x->1-