\(A=\lim\limits_{x\rightarrow-\infty}\dfrac{2a-\sqrt{1+\dfrac{3}{x}-\dfrac{1}{x^2}}}{3+\dfrac{5}{x}}=\dfrac{2a-1}{3}\)
tính gioi han \(\lim\limits_{x\rightarrow+\infty}\left(\dfrac{1}{A^2_n}+\dfrac{1}{A^2_n}+...+\dfrac{1}{A^2_n}\right)\)
tính giá trị \(\lim\limits_{x\rightarrow-\infty}\dfrac{\sqrt{x^2-3x+6}+2x}{2x-3}\) ?
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
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 \(A=\lim\limits_{x\rightarrow+\infty}\dfrac{mx+2006}{x+\sqrt{x^2+2007}}\). tìm m để A=0
Biết \(\lim\limits_{x\rightarrow-\infty}\dfrac{\sqrt{x}-1}{x^2+ax+2}=b\) . tìm a, b viết a, b là sô thuc khác 0
tìm gioi han \(\lim\limits_{x\rightarrow0}\dfrac{\sqrt{1.2x+1}.\sqrt[3]{2.3x+1}.\sqrt[4]{3.4x+1}...\sqrt[2018]{2017.2018x+1}}{x}\)
