lim(x→0)x^2tantx /∫(x,0)t(t+sint)dt

lim(x→0)x^2tantx /∫(x,0)t(t+sint)dt 求极限lim(x趋于0) (上限sinx下限0)【根号下t】的定积分除以 (上限tantx下限0)【根号下t】的定积分 lim(x→0)e^x-x-1/x^2 lim(x→0)[e^x-e^(2x)]/x lim(x→0)(cosx-cos^2x)/x^2 lim(x→0) (3x^2-5x+2), 极限lim(x→0)(1-2/x)^x lim(x→0)(1-2x)^1/x 极限? lim(x→0) (e^(-1/x^2))/x^100 lim(x→0)(2-e^x)^(1/x) lim(x→0)[ln(2+x)-ln2]/x lim x→0 (cot x)^tan 2x= lim(x→0)2x^3-x+1 lim 2（1+x）^1/x x→0 lim(x→0)(a^2x-1)/4x lim (x→0)x-sinx/x lim(1-x)^(2/x) x->0 求lim(x→0)x cos 1/x lim(x→∞)x^2/ (3x-1)的极限