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GIỚI HẠN DÃY SỐ

Authored by Thắng Nguyễn Đình

Mathematics

11th Grade

Used 3+ times

GIỚI HẠN DÃY SỐ
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30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Tổng S=13+19+...+13n+...S=\frac{1}{3}+\frac{1}{9}+...+\frac{1}{3^n}+... bằng

22

32\frac{3}{2}

11

12\frac{1}{2}

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

lim⁡(n2−2n+n)=\lim\left(\sqrt[]{n^2-2n}+n\right)=  

−∞-\infty  

11  

+∞+\infty  

−1-1  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

lim⁡4n2+n+12n−3=\lim\frac{\sqrt[]{4n^2+n+1}}{2n-3}=  

+∞+\infty  

22  

−∞-\infty  

1

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Dãy số nào có giới hạn bằng 0?

lim⁡(n2+1)\lim\left(n^2+1\right)

lim⁡(n21−5n)\lim\left(\frac{n^2}{1-5n}\right)

lim⁡(3n−n42n4+3)\lim\left(\frac{3n-n^4}{2n^4+3}\right)

lim⁡(2n1+n3)\lim\left(\frac{2n}{1+n^3}\right)

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Giá trị lim⁡ 5n3+3n−22n2−9n\lim\ \frac{5n^3+3n-2^{ }}{2n^2-9n} bằng

−∞-\infty

+∞+\infty

52\frac{5}{2}

00

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

lim⁡3n2+n1−2n=\lim\frac{3n^2+n}{1-2n}=  

−32\frac{-3}{2}  

00  

+∞+\infty  

−∞-\infty  

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Giá trị của lim⁡(n2−n4+1)\lim\left(n^2-n^4+1\right) bằng

+∞+\infty

−∞-\infty

1

-1

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