Difference between revisions of "009C Sample Final 3, Problem 1"

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<span class="exam">(b) &nbsp;<math style="vertical-align: -15px">a_n=\cos(n\pi)\bigg(\frac{1+n}{n}\bigg)^n</math>
 
<span class="exam">(b) &nbsp;<math style="vertical-align: -15px">a_n=\cos(n\pi)\bigg(\frac{1+n}{n}\bigg)^n</math>
  
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!Foundations: &nbsp;
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[[009C Sample Final 3, Problem 1 Solution|'''<u>Solution</u>''']]
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|'''L'Hôpital's Rule'''
 
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&nbsp; &nbsp; &nbsp; &nbsp; Suppose that &nbsp;<math style="vertical-align: -11px">\lim_{x\rightarrow \infty} f(x)</math>&nbsp; and &nbsp;<math style="vertical-align: -11px">\lim_{x\rightarrow \infty} g(x)</math>&nbsp; are both zero or both &nbsp;<math style="vertical-align: -1px">\pm \infty .</math>
 
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&nbsp; &nbsp; &nbsp; &nbsp; If &nbsp;<math style="vertical-align: -19px">\lim_{x\rightarrow \infty} \frac{f'(x)}{g'(x)}</math>&nbsp; is finite or &nbsp;<math style="vertical-align: -4px">\pm \infty ,</math>
 
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&nbsp; &nbsp; &nbsp; &nbsp; then &nbsp;<math style="vertical-align: -19px">\lim_{x\rightarrow \infty} \frac{f(x)}{g(x)}\,=\,\lim_{x\rightarrow \infty} \frac{f'(x)}{g'(x)}.</math>
 
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'''Solution:'''
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[[009C Sample Final 3, Problem 1 Detailed Solution|'''<u>Detailed Solution</u>''']]
  
'''(a)'''
 
  
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!Step 2: &nbsp;
 
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'''(b)'''
 
 
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!Final Answer: &nbsp;
 
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|&nbsp;&nbsp; '''(a)'''
 
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|&nbsp;&nbsp; '''(b)'''
 
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[[009C_Sample_Final_3|'''<u>Return to Sample Exam</u>''']]
 
[[009C_Sample_Final_3|'''<u>Return to Sample Exam</u>''']]

Latest revision as of 18:39, 2 December 2017

Which of the following sequences    converges? Which diverges? Give reasons for your answers!

(a)  

(b)  


Solution


Detailed Solution


Return to Sample Exam