Count the following integral

  • Thread starter Madou
  • Start date
  • #1
42
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I'm finding the arch length of a curve:
[tex] $\int_0^b \sqrt{1+sh^2(x/a)} dx$ [/tex]
How do i integrate this function?
 
Last edited:

Answers and Replies

  • #2
CompuChip
Science Advisor
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What do you mean by "count"?
What is "sh"?
If it is the hyperbolic sine: cosh^2 - sinh^2 = 1.
 
  • #4
42
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The derivative of sinh is cosh and the derivative of cosh is sinh
 
  • #5
42
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I think he meant "evaluate".
It's a pity I can't edit the topic.
 
  • #6
CompuChip
Science Advisor
Homework Helper
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The derivative of sinh is cosh and the derivative of cosh is sinh
Exactly. Does this mean you have solved the problem?
 
  • #7
42
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Does this mean you have solved the problem?
Next step was to use the equation CC gave me.
Thank you, guys.
 

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