求limx->0 (1+3x)^(2/sinx)

求limx->0 (1+3x)^(2/sinx) 求极限limx->0（sinx/x)^(1/x^2) limx→0(tanx-sinx)/[3^√(1+x^2))][√(1+sinx)-1]求极限 limx→0(1+3x)^(1/sinx) 求解答. limx趋于0,ln(1-2x)/sinx,求极值 limx趋近0 求极限 {（1+2x)^1/3 -1} /(1-cosx+sinx) limx→π/2 (sinx)^tanx limx→∞(2x+3/2x+1)^x+1 求极限 求limx^3/x-sinx的极限 x趋于0 求极限limx→0(x-sinx)/x^3是多少 求极限limx→0(x-sinx)/x^2 求极限,limx~0 (1-x)^(1/-sinx) limx->0 (tanx-sinx)/x^3 怎么求?