Question

微积分——函数求极限：设f(x)=(1-2^(1/x)) /(1+2^(1/x)),求limf(x)

Answer 1

当x趋向于无穷时,limf(x)=(1-0)/(1-0)=1

当x趋向于0时,limf(x)=-2^无穷/2^无穷=-1