Find area of e^x on interval [0,ln(9)]

  • Thread starter tjohn101
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Homework Statement



g(x)=ex and the x-axis on the interval [0,ln(9)]

a) Set up definite integral that represents area
b) Find area using fundamental theorem.

Homework Equations





The Attempt at a Solution


g(x)=ex [0,ln(9)]
[tex]
\int^{ln(9)}_{0}e^x dx
[/tex]
= [eln(9)]-[e0]
= [9]-[1]
= 8 square units


There's no way it was that easy... Did I mess up somewhere?
 

Answers and Replies

  • #2
Dick
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Not all problems have to be hard.
 
  • #3
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Yeah, I know. :) It's jut that it's worth 15 out of 100 points on our lab and our professor usually makes those questions the most difficult. It's unusual to have one so simple.
 
  • #4
Dick
Science Advisor
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Yeah, I know. :) It's jut that it's worth 15 out of 100 points on our lab and our professor usually makes those questions the most difficult. It's unusual to have one so simple.

Maybe. But I don't see how to interpret it as complicated.
 

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