lim(n-∞)In(x2-x+1)/In(x10+x+1)急用!

lim(n-∞)In(x2-x+1)/In(x10+x+1)急用! lim x-∞ x2-1/3x2+x 求极限 计算下列极限：1）lim(n→∞) 1/n3 2）lim(n→∞)4n+1/3n-11）lim(n→∞) 1/n3 2）lim(n→∞)4n+1/3n-13) lim(n→∞) (1/3)n4)lim(n→∞)n3+2n-5/5n3-n 5) lim(n→∞)(1+1/2n)n 6) lim(n→∞)2x3-x2+1/3x2+2x-9 7) lim(x→0 )sin3x/sin7x8) lim(根号X2+X-根号X2+1) lim(cos1/n)^n^2 n->∞lim (1+|x|)^1/x x->0 x→1时lim(x+x2+.+xn-n)/(x-1) 的极限值 x→1时lim(x+x2+.+xn-n)/(x-1) lim[n→∞] (x^n+1)^(1/n) lim(x2-4x+5)/2x2-x-1 x→∞ 求极限lim X→∞ [1+ x2/2 -√(1+ x2)]/(cos x –e x2 )sin x2 亲 lim In(n+1) / In(n+2) 是多少lim [In(n+1) / In(n+2)] 是多少 几道大学数学求极限的题1,lim(n→∞)（1^n+2^n+3^n+4^n）^n2,lim(x→π／6)｛（1-2sinx)／(sin(x-π／6))3,lim(x→0){(sinx³)tanx)／(1-cosx²)}4,lim(x→+∞)[㏑(a+x)-㏑x]／x5,lim(x→0)[㏑√(1+5x)]／x2楼第五题不是 lim(x→∞)(x2+x)/(x4-3x2+1)的极限求法过程 lim(x→∞)(x2+x)/(x4-3x2+1)的极限是多少? lim sin(x2-1)/x-1 lim x-1 x+1/2x2-x-1 lim x-0 （x+e的x次方）的1/x次方 lim x-1 x的n次方-1/x的m次方-1 lim(n-∞)﹙x²／x²-1﹚lim(n-∞)[x²／x²-1﹚]^x 证明:lim∫(0,+∞)In(x+n)/n•e^-xcosxdx=0