limx→1(xˆ3-3x+2)/(xˆ4-4x+3)怎么解?不用洛必达法则
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limx→1(xˆ3-3x+2)/(xˆ4-4x+3)怎么解?不用洛必达法则
limx→1(xˆ3-3x+2)/(xˆ4-4x+3)怎么解?
不用洛必达法则
limx→1(xˆ3-3x+2)/(xˆ4-4x+3)怎么解?不用洛必达法则
lim(x→1)(xˆ3-3x+2)/(xˆ4-4x+3)
=lim(x→1)(x-1)²(x+2)/(x-1)²(x²+2x+3)
=lim(x→1)(x+2)/(x²+2x+3)
=3/6
=1/2