lim(x→2)sin(x^2-4)⼀x-2

2025-06-28 15:10:14
推荐回答(1个)
回答1:

lim(x→2)sin(x^2-4)/﹙x-2﹚
=lim(x→2)sin(x-2﹚﹙x+2)/﹙x-2﹚
=lim(x→2)sin﹙x+2)
=sin﹙2+2)
=sin4
=-0.7568