lim x→0 sin2x/sin5xlim x→0 (1-cos2x)/x²lim x→0 in(1-x/2)^1/x_数学解答

lim x→0 sin2x/sin5xlim x→0 (1-cos2x)/x²lim x→0 in(1-x/2)^1/xlim x→∞ (1+2/x)^2x+1
lim x→0 sin2x/sin5x
lim x→0 (1-cos2x)/x²
lim x→0 in(1-x/2)^1/x
lim x→∞ (1+2/x)^2x+1
lim x→3 (x-3)cos1/(x-3)
lim x→0 (e^sinx-e^x)/(sinx-x)

人气：217 ℃　时间：2020-01-30 07:23:12

解答

lim x→0 sin2x/sin5x=lim x→0 2x/5x=2/5lim x→0 (1-cos2x)/x²=lim x→0 [(4x²)/2]/x²=2lim x→0 in(1-x/2)^1/x=e^(lim x→0(-x/2·1/x)=e^(-1/2)lim x→∞ (1+2/x)^2x+1=e^(lim x→∞(2/x·(2x+1)...亲爱的，详细解答好不好，我加分。求TAT够详细了啊。就应该这样答。