Find the length "L" of a certain curve given by L= http://www.mathhelpforum.com/math-he...63d30917-1.gif

- Im having a hard time with this, any help with be very appreciated

-thanks

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- Apr 28th 2008, 06:13 PMEric08Approximate value of integral
Find the length "L" of a certain curve given by L= http://www.mathhelpforum.com/math-he...63d30917-1.gif

- Im having a hard time with this, any help with be very appreciated

-thanks - Apr 28th 2008, 06:31 PMo_O
Make the following substitution:

Also, we must change our limits of our integral:

So substituting all these in:

- Apr 28th 2008, 06:42 PMEric08
Im sorry im very new to integrals, and need to see all the steps involved in solving this problem so I have an idea on what to do on future problems.

-Thank you - Apr 28th 2008, 06:47 PMo_O
This is a must-know integral: where and is some constant.

Do you not see how that applies to the last integral I gave you? - Apr 28th 2008, 07:00 PMEric08
is the answer 6.28?

- Apr 29th 2008, 06:00 PMEric08
I think i figured this out.. is the correct answer 25.8976?

- Apr 29th 2008, 06:08 PMo_O
From where we last left off:

Just as you had ;) - Apr 29th 2008, 06:12 PMKrizalid
That's the correct answer Eric08.

See QuickMath, pretty useful for cheking answers. - Apr 29th 2008, 07:19 PMThePerfectHacker