lim (9x^2+3x-2)/(9x^2-1) x→1/3 极限
1个回答
(9x^2+3x-2)/(9x^2-1)=(3x-1)(3x+2)/(3x-1)(3x+1)=(3x+2)/(3x+1)
lim (9x^2+3x-2)/(9x^2-1) x→1/3=3/2
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