lim(tanx-sinx)⼀(sinx)3

2025-06-23 08:12:34
推荐回答(1个)
回答1:

lim(x→0)(tanx-sinx)/(sinx)^3
=lim(x→0)tanx(1-cosx)/x^3
=lim(x→0)x*(1/2x^2)/x^3
=1/2