这道题怎么做,求具体过程

2025-02-27 21:31:50
推荐回答(1个)
回答1:

0<= lim(x->无穷大) (1-cos5x)/x^2 <= lim(x->无穷大) 2/x^2 = 0
所以:lim(x->无穷大) (1-cos5x)/x^2 = 0