limx->无穷大(tnax-sinx)/sin^3x
问题描述:
limx->无穷大(tnax-sinx)/sin^3x
lim->0
答
lim(x→∞)(tanx-sinx)/sin³x 不存在,【因为f(x) = (tanx-sinx)/sin³x是非常值的周期函数 】应该是lim(x→0)(tanx-sinx)/sin³x 吧lim(x→0)(tanx-sinx)/sin³x= lim(x→0)(sinx/cosx - s...