limx→+∞1+2x/3-4x눀=

2025-03-10 17:20:23
推荐回答(1个)
回答1:

洛必达法则,上下同求导,得2
lim x→∞(2x+3)/(x+2)
=lim x→∞[2(x+2)-1]/(x+2)
=lim x→∞[2-1/(x+2)]
=2-lim x→∞1/(x+2)
=2-0
=2