当x趋向于0,求1/sin^2-1/x^2的极限.洛必达求导不来.
当x趋向于0时,求:(1/sin^2x-1/x^2)的极限
求sin(x^2-1)/(x-1)当x趋向于1的极限,给出讲解,
当x趋向于0的时候,求lim{[ln(1+x^2)]/(sin(1+x^2)]}的极限
求[tan(x^2-1)]/(x-1)当X趋向于0时的极限?
求x^2*e^(1/x^2)的极限,当x趋向于0时
1/sin(x-2)当x趋向于2时的极限,
求lim [sin(x^2-1)]/(x-1) x趋向于1的极限.
求极限lim(x趋向于0)ln(1+x^2)/sin(1+x^2)
(1)当x趋向于1时,求limx^1/1-x的极限?(2)当x趋向0时,求lim ln(1+x^2)/sin(1+x^2
求x^2/cosx-1的极限当x趋向于0
当x趋向于0时,求[cos(sinx)-1]/3x^2的极限,
函数极限问题当x趋向1时,求[sin^2(x-1)]/(x-1)的极限求详细解释,