知识大比拼

知识大比拼

University

8 Qs

quiz-placeholder

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知识大比拼

知识大比拼

Assessment

Quiz

Mathematics

University

Medium

Created by

CHEN ZHIJUN

Used 19+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

函数 y=f(x)y=f\left(x\right)  在 [a,b]\left[a,b\right]  上有 f(x)0f\left(x\right)\ge0  ,则由 y=f(x),x=a,x=b,y=0y=f\left(x\right),x=a,x=b,y=0  围成的曲边梯形的面积可以表示为(  )

 f(x)dx\int_{ }^{ }f\left(x\right)dx  

 abf(x)dx\int_a^bf\left(x\right)dx  

 f(b)f(a)2(ba)\frac{f\left(b\right)-f\left(a\right)}{2}\left(b-a\right)  

无法表示

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 y=x2x=0x=1y=0y=x^2,x=0,x=1,y=0  围成的曲边梯形的面积可以表示为(  )


 01x2dx\int_0^1x^2dx  

 x2dx\int_{ }^{ }x^2dx  

 12\frac{1}{2}  

无法表示

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

定积分 02xdx=\int_0^2xdx=  (  )

1

2

3

4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

定积分 112dx=\int_{-1}^12dx=  (  )


1

2

3

4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

定积分 02πsinxdx=\int_0^{2\pi}\sin xdx=  (  )


0

1

2

3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

定积分 abfxdx=\int_a^bf(x)dx=  (  )

 baf(x)dx\int_b^af\left(x\right)dx  

 abf(x)dt\int_a^bf\left(x\right)dt  

 abf(t)dt\int_a^bf\left(t\right)dt  

 F(x)+CF\left(x\right)+C  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

上图中的阴影部分面积用定积分表示正确的是( )

33fxdx\int_{-3}^3f(x)dx

31fxdx13fxdx\int_{-3}^1f(x)dx-\int_1^3f(x)dx

31fxdx+13fxdx\int_{-3}^1f(x)dx+\int_1^3f(x)dx

31fxdx13fxdx-\int_{-3}^1f(x)dx-\int_1^3f(x)dx

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

上图中阴影部分面积用定积分表示正确的是(  )

 22fxdx-\int_{-2}^2f(x)dx  

 22fxdx\int_{-2}^2f(x)dx  

 22gxdx\int_{-2}^2g(x)dx  

 22gxdx-\int_{-2}^2g(x)dx