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Week 15 Review

Authored by Brittany Langlais

Mathematics

University

Used 2+ times

Week 15 Review
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9 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Evaluate the indefinit integral using u-substitution:

 e2xdx\int_{ }^{ }e^{2x}dx  

 12e2x+c\frac{1}{2}e^{2x}+c  

 e2x+ce^{2x}+c  

 2e2x+c2e^{2x}+c  

 12e2x\frac{1}{2}e^{2x}  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Evaluate the indefinite integral using u-substitution:

 (2x+3)ex2+3x\int_{ }^{ }\left(2x+3\right)e^{x^2+3x}  

 12e(x2+3x)+c\frac{1}{2}e^{\left(x^2+3x\right)}+c  

 e(2x+3)+ce^{\left(2x+3\right)}+c  

 ex2+3x+ce^{x^2+3x}+c  

 e(x2+3)+ce^{\left(x^2+3\right)}+c  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Use the change of variables formula to evaluate:

 11xcos(x2)dx\int_{-1}^1x\cos\left(x^2\right)dx  

 11  

 π2\frac{\pi}{2}  

DNE

0

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 23(xx21)dx\int_2^3\left(\frac{x}{\sqrt{x^2-1}}\right)dx  Use the change of variables formula to evaluate:

 2232\sqrt{2}-\sqrt{3}  

 5\sqrt{5}  

 222\sqrt{2}  

 232\sqrt{3}  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (32x)dx\int\left(\frac{3}{2x}\right)dx  

Evaluate the integral:

 ln(32)+c\ln\left(\frac{3}{2}\right)+c  

 32lnx+c\frac{3}{2}\ln\left|x\right|+c  

 ln32+c\ln\left|\frac{3}{2}\right|+c  

 13x2+c\frac{1}{3}x^2+c  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 12(xx2+5)dx\int_1^2\left(\frac{x}{x^2+5}\right)dx  

Evaluate the integral:

 12ln(6)\frac{1}{2}\ln\left(6\right)  

 2ln(3)ln(6)2\ln\left(3\right)-\ln\left(6\right)  

 1x2+5+c\frac{1}{x^2+5}+c  

 ln(3)12ln(6)\ln\left(3\right)-\frac{1}{2}\ln\left(6\right)  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 πtdt\int_{ }^{ }\pi^tdt  

Evaluate the integral:

 πt+c\pi^t+c  

 πtln(π)+c\frac{\pi t}{\ln\left(\pi\right)}+c  

 πtln(t)+c\frac{\pi t}{\ln\left(t\right)}+c  

 ln(πt)+c\ln\left(\frac{\pi}{t}\right)+c  

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