lim(2x-3)^20*(3x+2)^30/(5x+1)^50 x->∞ 求极限.麻烦lim(2x-3)^20*(3x+2)^30/(5x+1)^50 x->∞ 求极限.麻烦写的详细点哈哈.求教

lim(x->无穷大){(2^x-3^x)/2}^(1/x) lim(x->0)((2-x)/(3-x))^1/x ( x+3) lim (------------)的x次方 x->∞ ( x-2) 1.lim x->∞ （2x/x^2+1)*cosx 2..lim x->∞{ [(x^2-x)arctanx]/x^3-x-5}3..lim x->0 （e^x-e^-x-2x)/(x-sinx) 4..lim x->0 (sinx-x)/(x^3) 5..lim x->0 (x^2*tanx)/(x-tanx) 6..lim x->0 (1+3/x)^2x 7..lim x->0 (1+2x)^(3/sinx) 8.lim x->∞ (x/1+x)^(x-3) 9..li 求lim(x趋于3)x^2-8/x-3 求极限lim(1-2/x+3/x^2)^x lim(x->2) {(3x+16)^1/2-4}/x 极限lim(x^2+2x+3)/(x-1) lim(2x+3/2x+1)^(x+1) lim(x→0) (3x^2-5x+2), lim趋于无穷.(x+2/x+3)^2x lim(2x-3/2x+1）^x+1 lim(x趋向0) x^2 / (sin^2) * x/3 求极限lim(x+3)(2+cosx)/(x^2+x) lim(x趋向0) x^2 / (sin^2) * x/3 lim(x趋向无穷)[1-(2/x)]^3x lim x→∞(2x+1)/(3x-4) lim(x->0)(tan3x+2x)/(sin2x+3x)