\(\lim\limits_{x\rightarrow-\infty}\dfrac{-\sqrt{1-\dfrac{3}{x}+\dfrac{6}{x^2}}+2}{2-\dfrac{3}{x}}=\dfrac{-1+2}{2}=\dfrac{1}{2}\)
\(\lim\limits_{x\rightarrow-\infty}\dfrac{-\sqrt{1-\dfrac{3}{x}+\dfrac{6}{x^2}}+2}{2-\dfrac{3}{x}}=\dfrac{-1+2}{2}=\dfrac{1}{2}\)
cho biết \(\lim\limits_{x\rightarrow-\infty}\dfrac{1-\sqrt{4x^2-x+5}}{a\left|x\right|+2}=\dfrac{2}{3}\). tính giá trị a?
cho \(\lim\limits_{x\rightarrow-\infty}\dfrac{a\sqrt{x^2+1}+2017}{x+2018}=\dfrac{1}{2}\); \(\lim\limits_{x\rightarrow+\infty}\left(\sqrt{x^2+bx+1}-x\right)=2\). Tính P=4a+b
giới hạn \(\lim\limits_{x\rightarrow+\infty}\dfrac{\left(x-1\right)^2\left(2x^3+3x\right)}{4x-x^5}=\dfrac{a}{b}\). tìm a,b biết a/b tối giản
biết \(\lim\limits_{x\rightarrow+\infty}\left(x+1\right)\sqrt{\dfrac{2x+1}{5x^3+x+2}}=-\sqrt{\dfrac{a}{b}}\) . tìm a, b biết a, b là phan so toi gian; a,b>0
tìm gioi han \(A=\lim\limits_{x\rightarrow-\infty}\dfrac{2ax+\sqrt{x^2+3x-1}}{3x+5}\)
tính \(\lim\limits_{x\rightarrow-\infty}\dfrac{\sqrt{x^2+x}+\sqrt[3]{x^3+1}}{x}=\sqrt[a]{b}+c\). thì a+b+c=?
\(\lim\limits_{x\rightarrow-3}\dfrac{x^3+27}{2x^2+3x-9}\)
có bao nhiêu giá trị m nguyên thuộc đoạn \(\left[-20;20\right]\) để \(\lim\limits_{x\rightarrow-\infty}\left(mx+2\right)\left(m-3x^2\right)=-\infty\)?