lim( x^2 + x (x^2+2)^(1/2) )当x无穷大时的极限

lim(x(sin)^2) lim(1-x)^(2/x) x->0 lim(x^2+1/x^2-2x)^x=? lim(x->无穷大){(2^x-3^x)/2}^(1/x) lim(x-0)(x^2+2x)cos5x/(x+tan3x) Lim [x^2/(x^2-1)]^x (x→∞) 极限：lim(x->2)1/(x-2) 求极限lim(x->0)(x+e^x)^2/x lim x->正无穷大 x ( sqrt(x^2+1)-x ) Lim(x>1) x-1/x^2+x-2.计算 lim(x->0)((2-x)/(3-x))^1/x ( x+3) lim (------------)的x次方 x->∞ ( x-2) lim(1+x/x)2x (x→∞) lim x-0(x+e^x)^(2/x)要过程 lim(x→0)e^x-x-1/x^2 lim x→1 x-1/x^2-x lim(x/x-c)^x=2 x趋于无穷 lim(x+1/x+2)^x=?x趋于无穷