lim(x→1)(3-2x)^3/x-1 怎么解

lim x→∞(2x+1)/(3x-4) lim(x→0)2x^3-x+1 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限 lim(x→1)(x^3-3x+2)/(x^3-x^2-x+1) lim(x→1)[(x^(3x-2)-x)sin2(x-1)]/(x-1)^3 lim((√1+x^2)+x)/((√x^3+x)-x)x→+无穷大 lim（ x→∞）（1+x / x)^3x lim(x->无穷大){(2^x-3^x)/2}^(1/x) lim(x->0)((2-x)/(3-x))^1/x lim(x+e^3x)^1/x lim（x-3/x+1）^x lim趋向无穷大 1.lim x→0 3x/(sinx-x)2.lim x→0 (1-cosmx)/x^23.lim x→0 sin4x/[(√x+2)-√2]4.lim h →0 [sin(x+h)-sin(x-h)]/h lim(x→∞)(4x^3+2x-1)/(2x^3-3x+1) lim(x→∞)[（x^3+x^2+x^1+1)^(1/3) - x] 的极限. lim(x→0)[(1+X)(1+2X)(1+3x)-1]/x lim(x→∞)(2x^3-x^2-3)/(x^3-x+1) lim x→1 (x^2-4x+3)/(x^4-4x^2+3) lim √（3-x）-√（1+x）/x平方+x-2x→1