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Integration with Substitution and the Definite Integral

Authored by Letitia Downen

Mathematics

University

CCSS covered

Used 17+ times

Integration with Substitution and the Definite Integral
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21 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Evaluate the Integral 2xcos(x2)dx\int2x\cos\left(x^2\right)dx  


 sin(x2)+C\sin\left(x^2\right)+C  

 2sin(2x)+C2\sin\left(2x\right)+C  

 12sin(x2)+C\frac{1}{2}\sin\left(x^2\right)+C  

 4cos(2x)+C4\cos\left(2x\right)+C  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What should the value of "u" be equal to in this integral.

  sin(lnx)xdx\int\ \frac{\sin\left(\ln x\right)}{x}dx  


 u=xu=x  

 u=lnxxu=\frac{\ln x}{x}  

 u=lnxu=\ln x  

 u=sin(lnx)u=\sin\left(\ln x\right) 

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What should "du" equal in this integral?  tanxsecxsec5 xdx\int\ \frac{\tan x\sec x}{\sec^{5\ }x}dx  

 du=tanxsecx dxdu=\tan x\sec x\ dx 

 du=secx dxdu=\sec x\ dx  

 du=sec2x dxdu=\sec2x\ dx  

 du=tanx dxdu=\tan x\ dx  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Find the value of the indefinite integral.
  4x2x2+6dx\int\ \frac{4x}{2x^2+6}dx  


 ln(2x2+6)+C\ln\left(2x^2+6\right)+C  

 4xln(2x2+6)+C4x\ln\left(2x^2+6\right)+C  

 12x2+6+C\frac{1}{2x^2+6}+C  

 1(2x2+6)2+C\frac{1}{\left(2x^2+6\right)^2}+C  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Evaluate the Integral.

  exxdx\int\ \frac{e^{\sqrt{x}}}{\sqrt{x}}dx  


 2ex+C2e^{\sqrt{x}}+C  

 12ex+C\frac{1}{2}e^{\sqrt{x}}+C  

 2xex+C2\sqrt{x}e^{\sqrt{x}}+C  

 ex+Ce^{\sqrt{x}}+C  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 INTEGRATE   8x2(x3  +2)3 dx    INTEGRATE\ \int\ \ \frac{8x^2}{\left(x^{3\ \ }+2\right)^3}\ dx\ \ \ \   

 4(x3  + 2)2  + C-\frac{4}{\left(x^{3\ \ }+\ 2\right)^2}\ \ +\ C  

 43(x3 +2)2 +C\frac{4}{3\left(x^3\ +2\right)^2}\ +C  

 4(x3  + 2)2   +C\frac{4}{\left(x^3\ \ +\ 2\right)^2}\ \ \ +C  

 43(x3 +2)2  +C-\frac{4}{3\left(x^{3\ }+2\right)^2}\ \ +C  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Use substitution to evaluate the integral 4sec24x tan4x dx\int4\sec^24x\ \sqrt{\tan4x}\ dx

2(tan4x)32+C2\left(\tan4x\right)^{\frac{3}{2}}+C

154(tan4x)43+C\frac{15}{4}\cdot\left(\tan4x\right)^{\frac{4}{3}}+C

43(tan4x)32+C\frac{4}{3}\cdot\left(\tan4x\right)^{\frac{3}{2}}+C

23(tan4x)32+C\frac{2}{3}\cdot\left(\tan4x\right)^{\frac{3}{2}}+C

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