lim (x)^1/2 [(x+1)^1/2 -(x-1)^1/2]= x趋向无穷,求极限

lim(2x+3/2x+1)6x次方 x趋向无穷 求极限 求极限.lim x(根号下(x^2+1) ) -x x趋向正无穷 微积分求极限lim（x趋向无穷）(x2+(cosx)2-1)/(x+sinx)2= lim(1-2/x)^x/2+1(x趋向于无穷)求极限 求lim x趋向无穷 sin(x+1)/x^2的极限 lim(1-3/x)^2x x趋向无穷求极限 lim 2x+1/x x趋向于无穷 求极限 求极限 lim(2x-1/2x+1 )^x+1 x趋向于无穷,求这个极限, lim (x)^1/2 [(x+1)^1/2 -(x-1)^1/2]= x趋向无穷,求极限 极限lim(x趋向正无穷) 3x^2+1 / 2x^2-2014 = 高数极限lim(x趋向无穷)x/根号（x^2+1）=? lim(x趋向无穷)根号(4x^2-x+1)-2X的极限