一道让我很郁闷的高数求极限lim(x->0+){[cos(x^(1/2))]^(1/x)}说句实话，看着有点晕[解决办法]lim(x->0+)(1-sin^2(x^(1/2)))^(1/2x)=lim(x->0+)(1-x)^(1/2x)=e^(1/2)
