Free Printable Giới hạn hàm số

1.

Tìm giới hạn $\lim_{x\rightarrow2}\ \frac{x^2-4}{x^2-3x+2}$

a)

1

b)

2

c)

3

d)

4

2.

$\lim_{x\rightarrow-1}\ \frac{x^2-1}{x^2+3x+2}$ bằng?

a)

$\frac{1}{2}$

b)

$-\frac{1}{2}$

c)

2

d)

-2

3.

$\lim_{x\rightarrow5}\ \frac{x^2-5x}{x^2-25}$ bằng?

a)

$\frac{1}{2}$

b)

$\frac{1}{5}$

c)

$\frac{5}{2}$

d)

5

4.

$\lim_{x\rightarrow2}\ \frac{x^2-2x}{-2x^2+6x-4}$ bằng?

a)

$-2$

b)

$-1$

c)

$-\frac{1}{2}$

d)

2

5.

$\lim_{x\rightarrow1}\ \frac{x^3-x^2-x+1}{-x^2+3x-2}$ bằng?

a)

$0$

b)

$\frac{1}{2}$

c)

1

d)

2

6.

$\lim_{h\rightarrow0}\ \frac{\left(x+h\right)^3-x^3}{hx}$ bằng?

(a)

7.

$\lim_{x\rightarrow2}\ \frac{4x^2+x-18}{x^3-8}$ bằng?

a)

$\frac{12}{17}$

b)

$\frac{15}{12}$

c)

$\frac{12}{15}$

d)

$\frac{17}{12}$

8.

$\lim_{x\rightarrow5}\ \frac{x^2+x-30}{2x^2-9x-5}$ bằng?

(a)

9.

$\lim_{x\rightarrow\frac{1}{2}}\ \frac{2x^2-5x+24x^2-1}{4x^2-1}$ bằng?

a)

$\frac{3}{2}$

b)

$-\frac{3}{2}$

c)

$\frac{-3}{4}$

d)

$\frac{1}{2}$

10.

$\lim_{x\rightarrow-1}\ \frac{2x^2+3x+1}{-x^2+4x+5}$ bằng?

a)

$\frac{-1}{6}$

b)

$\frac{-1}{4}$

c)

$\frac{1}{4}$

d)

$\frac{1}{6}$

11.

$\lim_{x\rightarrow0}\ \frac{\sqrt{x+1}-\sqrt{x^2+x+1}}{x}$ bằng?

(a)

12.

$\lim_{x\rightarrow7}\ \frac{\sqrt{x-3}-2}{49-x^2}$ bằng?

a)

$\frac{-2}{7}$

b)

$\frac{-1}{56}$

c)

$\frac{2}{7}$

d)

$\frac{1}{56}$

13.

$\lim_{x\rightarrow2}\ \frac{2-\sqrt{x+2}}{x^2-3x+2}$ bằng?

a)

$\frac{-1}{4}$

b)

$\frac{1}{4}$

c)

$\frac{1}{2}$

d)

$\frac{-1}{2}$

14.

$\lim_{x\rightarrow2}\ \frac{\sqrt{4x+1}-3}{x^2-4}$ bằng?

a)

$\frac{1}{6}$

b)

$\frac{1}{4}$

c)

$\frac{1}{3}$

d)

$\frac{1}{2}$

15.

$\lim_{x\rightarrow1}\ \frac{\sqrt{2x-7}-3}{x^3-4x^2+3}$ bằng?

a)

$\frac{1}{5}$

b)

$\frac{-2}{5}$

c)

$2$

d)

$-2$

Giới hạn hàm số - Thầy Vũ

Total questions: 15

Worksheet time: 1hrs 15mins

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