x如何变化,y=(x+2)⼀(x-1)为无穷大量,无穷小量?

2025-06-24 14:23:21
推荐回答(1个)
回答1:

y=(x+2)/(x-1)
=(x-1+3)/(x-1)
=1+3/(x-1)
当X趋于1+(从大到小)时为无穷大
趋于1-(从小到大)时无穷小