lim x→∞ x^2+2x-sinx/2x^2+sinx
lim(x→∞)[sinx/x+xsin(1/2x)]
lim x趋向0 x^2-sinx/x+sinx
lim(x+e^2x)^(1/sinx)
lim(x->0)x/(sinx)^2=?
求极限 lim x→∞(2sinx/x-)
lim(x→0)(1-x^2-e^-x)/sinx
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lim(x→0)(1+sinx)^(1/2x)
求下列极限,lim(x+2sinx)/(x+3sinx),x→0
lim(x→∞)[(sinx)^2+x/cos^2x-x]求极限
求极限 lim/x-0 (e^x+sinx+x^2)
求极限:lim{(2x+sinx)/x}(x->无穷大)