How do I solve for arc length?

AI Thread Summary
To solve for arc length, the Weierstrass substitution, also known as trigonometric substitution, is a useful method. This technique transforms the integral into a more manageable form, often using the "t-formula." Users are encouraged to research these terms in calculus resources for a clearer understanding. The discussion highlights a common confusion regarding terminology in mathematical substitutions. Understanding these concepts is essential for effectively calculating arc lengths.
silverbabe
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How do I solve this ?
 

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Weierstrass substitution.
 
i.e. a trig substitution.
 
I didn't know that was called Weierstrass substitution. I've always known it as "t-formula".
 
okay... I´m lost!
 
Silverbabe, search for "Weierstrass substitution" or "trigonometric substitution" in your calculus book, library, the Internet, or Wikipedia, and you'll find out what it means
 

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