Difference between revisions of "009A Sample Final 1, Problem 2"

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<span class="exam"> Consider the following piecewise defined function:
 
<span class="exam"> Consider the following piecewise defined function:
  
::::::<math>f(x) = \left\{
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::<math>f(x) = \left\{
 
     \begin{array}{lr}
 
     \begin{array}{lr}
 
       x+5 &  \text{if }x < 3\\
 
       x+5 &  \text{if }x < 3\\
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   \right.
 
   \right.
 
</math>
 
</math>
<span class="exam">a) Show that <math>f(x)</math> is continuous at <math>x=3</math>.
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<span class="exam">(a) Show that &nbsp;<math style="vertical-align: -5px">f(x)</math>&nbsp; is continuous at &nbsp;<math style="vertical-align: 0px">x=3.</math>
  
<span class="exam">b) Using the limit definition of the derivative, and computing the limits from both sides, show that <math>f(x)</math> is differentiable at <math>x=3</math>.
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<span class="exam">(b) Using the limit definition of the derivative, and computing the limits from both sides, show that &nbsp;<math style="vertical-align: -3px">f(x)</math>&nbsp; is differentiable at &nbsp;<math style="vertical-align: 0px">x=3</math>.
  
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<hr>
!Foundations: &nbsp;
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[[009A Sample Final 1, Problem 2 Solution|'''<u>Solution</u>''']]
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'''Solution:'''
 
  
'''(a)'''
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[[009A Sample Final 1, Problem 2 Detailed Solution|'''<u>Detailed Solution</u>''']]
  
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'''(b)'''
 
 
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!Final Answer: &nbsp;
 
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[[009A_Sample_Final_1|'''<u>Return to Sample Exam</u>''']]
 
[[009A_Sample_Final_1|'''<u>Return to Sample Exam</u>''']]

Latest revision as of 15:41, 2 December 2017

Consider the following piecewise defined function:

(a) Show that    is continuous at  

(b) Using the limit definition of the derivative, and computing the limits from both sides, show that    is differentiable at  .


Solution


Detailed Solution


Return to Sample Exam