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giới hạn của dãy số

Total questions: 16

Worksheet time: 8mins

Name
Class
Date
1.

lim⁡1n\lim\frac{\text{1}}{\text{n}}  bằng

a)

11  

b)

22  

c)

00  

d)

−∞-\infty  

2.

Giá trị của lim⁡3−2n3n−2\lim\frac{3-2n}{3n-2}  bằng

a)

−23-\frac{2}{3}  

b)

23\frac{2}{3}  

c)

32\frac{3}{2}  

d)

−32-\frac{3}{2}  

3.

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

a)

22  

b)

33  

c)

11  

d)

44  

4.

lim⁡−34n2−2n+1\lim\frac{-3}{4n^2-2n+1}  

a)

-3/4

b)

−∞-\infty  

c)

0

d)

+∞+\infty  

5.

lim⁡n+2n2n3+3n−1\lim\frac{n+2n^2}{n^3+3n-1}  

a)

-2

b)

1

c)

2/3

d)

0

6.

lim⁡n2−3n32n3+5n−2\lim\frac{n^2-3n^3}{2n^3+5n-2}  

a)

-3/2

b)

1/5

c)

1/2

d)

0

7.

lim⁡(2n−n3)(3n2+1)(2n−1)(n4−7)\lim\frac{\left(2n-n^3\right)\left(3n^2+1\right)}{\left(2n-1\right)\left(n^4-7\right)}  

a)

-3/2

b)

1

c)

3

d)

+∞+\infty  

8.

lim⁡n+1n+8\lim\frac{\sqrt{n}+1}{\sqrt{n}+8}  

a)

1/2

b)

1

c)

1/8

d)

+∞+\infty  

9.

lim⁡2n+3n34n2+2n+1\lim\frac{2n+3n^3}{4n^2+2n+1}  

a)

3/4

b)

+∞+\infty  

c)

0

d)

2/4

10.

lim⁡3n−n44n−5\lim\frac{3n-n^4}{4n-5}  

a)

0

b)

+∞+\infty  

c)

−∞-\infty  

d)

3/4

11.

Dãy số nào sau đây có giới hạn bằng 0?

a)

(5/3)n

b)

(1/3)n

c)

(-5/3)n

d)

2n

12.

Giá trị của lim⁡3n+1+2n3n−2n+2\lim\frac{3^{n+1}+2^n}{3^n-2^{n+2}}  

a)

0

b)

13\frac{1}{3}  

c)

3

d)

14\frac{1}{4}  

13.
a)

+∞+\infty

b)

−∞-\infty

c)

0

d)

1

14.
a)

0

b)

+∞+\infty

c)

32\frac{3}{2}

d)

1

15.

lim⁡a.n+45n+3=2\lim\frac{a.n+4}{5n+3}=2  

a)

a=10

b)

a=5

c)

a=0

d)

a=4/3

16.

Giá trị của lim⁡1n+1\lim\frac{1}{n+1}  bằng:

a)

1

b)

0

c)

12\frac{1}{2}  

d)

+∞+\infty