limx趋近于1 (x^4)-1/(x-1)等于多少?

limx趋近于0sin2xln(1+x)/4x^3 limx趋近于无穷大 (x/x+1)^3+x次方 limx趋近于0x^(x^x-1)的极限 limx趋近于1,x ^1/x-1等于? limx趋近于1 sin(1-x^2)/1-x 证明x趋近于0+ limx[1/x]=1 limx趋近于0 x^3-1/x-1 limx趋近于0sin(1/x)/(1/x) limx(e^1/x-1) x趋近于无穷 limx趋近于0(sinx/x)^(1/x^2) limx趋近于0+ x·e^1/x limx趋近于0 (e^2x)-1/x limx趋近于0 1-gen1+x^2/x^2 lim1/根号n＊sin （n趋近于无穷）,limx^3+1/4-x^2(x趋近于2),limx^2+1/x-1/x^2(x...lim1/根号n＊sin （n趋近于无穷）,limx^3+1/4-x^2(x趋近于2),limx^2+1/x-1/x^2(x趋近于-2) limx趋近于0时1/(1-e^1/x) limx趋近于0(1/(EX次方-1)-1/x) limx趋近于1,(1-x^2)/sinx limx趋近于无穷(2-1/x+1/xx)