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Đạo hàm - Derivatives

Authored by Lưu Hà

Mathematics

11th - 12th Grade

CCSS covered

Used 49+ times

Đạo hàm - Derivatives
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32 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Khẳng định nào sai ? (giả sử các giới hạn dưới đây đều tồn tại)

 f′(x0)=lim⁡x→x0f(x)−f(x0)x−x0f'\left(x_0\right)=\lim_{x\rightarrow x_0}\frac{f\left(x\right)-f\left(x_0\right)}{x-x_0}  

 f′(x)=lim⁡h→0f(x+h)−f(x)hf'\left(x\right)=\lim_{h\rightarrow0}\frac{f\left(x+h\right)-f\left(x\right)}{h}  

 f′(x)=lim⁡Δx→0 f(x+Δx)−f(x)Δxf'\left(x\right)=\lim_{\Delta x\rightarrow0}\ \frac{f\left(x+\Delta x\right)-f\left(x\right)}{\Delta x}  

 f′(x)=lim⁡h→0 f(x+h)−f(h)xf'\left(x\right)=\lim_{h\rightarrow0}\ \frac{f\left(x+h\right)-f\left(h\right)}{x}  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (u+v)′=\left(u+v\right)'=  

 u′+v′u'+v'  

 u′−v′u'-v'  

 u′v′u'v'  

 u′v+uv′u'v+uv'  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tính đạo hàm của hàm số  y=(7x−5)4y=\left(7x-5\right)^4  

 y′=4(7x−5)3y'=4\left(7x-5\right)^3  

 y′=−28(7x−5)3y'=-28\left(7x-5\right)^3  

 y′=−28(5−7x)3y'=-28\left(5-7x\right)^3  

 y′=28(5−7x)3y'=28\left(5-7x\right)^3  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tính đạo hàm của hàm số  y=(1−x3)5y=\left(1-x^3\right)^5  

 y′=5x2(1−x3)4y'=5x^2\left(1-x^3\right)^4  

 y′=−15x2(1−x3)4y'=-15x^2\left(1-x^3\right)^4  

 y′=−3x2(1−x3)4y'=-3x^2\left(1-x^3\right)^4  

 y′=−5x2(1−x3)4y'=-5x^2\left(1-x^3\right)^4  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tính đạo hàm của hàm số  f(x)=2xx−1f\left(x\right)=\frac{2x}{x-1}  tại điểm  x=−1x=-1  

1

 −12-\frac{1}{2}  

- 2

0

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tính đạo hàm của hàm số y=x2+2x−3x+2y=\frac{x^2+2x-3}{x+2}  

 y′=1+3(x+2)2y'=1+\frac{3}{\left(x+2\right)^2}  

 y′=x2+6x+7(x+2)2y'=\frac{x^2+6x+7}{\left(x+2\right)^2}  

 y′=x2+4x+5(x+2)2y'=\frac{x^2+4x+5}{\left(x+2\right)^2}  

 y′=x2+8x+1(x+2)2y'=\frac{x^2+8x+1}{\left(x+2\right)^2}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Tính đạo hàm của hàm số y=x2−4x3y=\sqrt{x^2-4x^3} 

 y′=x−6x2x2−4x3y'=\frac{x-6x^2}{\sqrt{x^2-4x^3}}  

 y′=12x2−4x3y'=\frac{1}{2\sqrt{x^2-4x^3}}  

 y′=x−12x22x2−4x3y'=\frac{x-12x^2}{2\sqrt{x^2-4x^3}}  

 y′=x−6x22x2−4x3y'=\frac{x-6x^2}{2\sqrt{x^2-4x^3}}  

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