1.lim(2x-sinx)/(2x+sinx) (x→0)2.lim(sinsinx)/x (x→0)3.lim 4/y (y→∞)

lim(x+e^2x)^(1/sinx) lim(x->无穷大)x/(sinx)^2=? lim (x^2sin1/x) /sinx lim x趋向0 x^2-sinx/x+sinx lim（x-0） x｀2-sinx/x+sinx lim( 2x-sinx)/(x +sinx)趋近0, 1.lim(2x-sinx)/(2x+sinx) (x→0)2.lim(sinsinx)/x (x→0)3.lim 4/y (y→∞) lim (e^x-sinx-1)/(arcsinx^2) lim(x->π/2)ln(3+sinx) 1.lim x->∞ （2x/x^2+1)*cosx 2..lim x->∞{ [(x^2-x)arctanx]/x^3-x-5}3..lim x->0 （e^x-e^-x-2x)/(x-sinx) 4..lim x->0 (sinx-x)/(x^3) 5..lim x->0 (x^2*tanx)/(x-tanx) 6..lim x->0 (1+3/x)^2x 7..lim x->0 (1+2x)^(3/sinx) 8.lim x->∞ (x/1+x)^(x-3) 9..li 1.lim sinX^3/(sinX)^3x→02.lim tan2X/sin5Xx→03.lim(1/1+x)^(1/2x+1)x→0 关于lim (sinx) ∧tanx x->π/2lim (sinx) ∧tanx x->π/2下面是我的做法：lim （ (1+(sinx-1))∧(1/sinx) ）∧（sinx-1）tanx 即利用两个重要极限之一的 lim (1+x)∧(1/x)=ex->π /2 得到 e ∧lim (sinx-1)tanx x->π /2 此时（s 求lim sinx^2/(sinx)^2 x趋向0 (x->0) lim(2x^2-sinx)/x=? lim(x-0) (sinx/x)^ctg^2(x) 求极限 lim/x-0 (e^x+sinx+x^2) 1.lim x->0 sinx/ x 2.lim x趋于0 sin2x/3x 3.lim x趋于0 x乘以cot3x 4.lim x->无穷 sinx/2x 5.limx趋于无穷(1+X/X)2x 6.lim x->0(1+X)1/x 7.lim x->无穷(1-1/X)x lim [xtan(2/x)+(1/x^2)sinx^2] .