求极限lim (x趋近1)(3X的平方-2X+1)
。。。因为3x^2-2x+1是连续函数,所以lim(x--1)3x^2-2x+1=3-2+1=2
求lim(x趋于1)(3x方-2x+1)
原式=3*1²-2*1+1=2
lim(X→1)(3X²-2X+1)求解题过程
lim(x→1)(3x²-2x+1)=3×1²-2×1+1 =3-2+1 =2
limx→1(3x²-2x+1)
由于该极限函数为连续函数,所以
lim(X→1)(3X²-2X+1)求解题过程,有图最好,谢谢
lim(X→1)(3X²-2X+1)求解题过程,有图最好,谢谢 解:这个直接代入即可 lim(X→1)(3X²-2X+1)=3*1²-2*1+1 =3-2+1 =2
lim(3x方-2x+1)x→1答案是啥
y=3x²-2x+1 =3[x²-(2\/3)x+(1\/3)]=3[(x-1\/3)²-1\/9+1\/3]=3[(x-1\/3)²+2\/9]=3(x-1\/3)²+2\/3 当x=1,y=3(2\/3)²+2\/3=2 lim(3x方-2x+1)x→1答案是2
16.求函数极限:lim(x1)(3x-1)\/(x^2-2x+1
lim(x-->1)(3x-1)\/(x^2-2x+1)=∞
limx→2(3x²-2x+1)
如图,直接将x=2代入,得到原式=9
lim(x→∞)(3x^2+2x+1)\/(4x^3+7x^2+2)求极限
如图所示:
limx→1(x^3-x^2-x+1\/2x^3-3x^2+1)=?
lim(x->1)(x^3-x^2-x+1)\/(2x^3-3x^2+1) (0\/0)=lim(x->1)(3x^2-2x-1)\/(6x^2-6x) (0\/0)=lim(x->1)(6x-2)\/(12x-6)=4\/6 =2\/3