Our Discord hit 10K members! 🎉 Meet students and ask top educators your questions.Join Here!

Like

Report

WZ
Numerade Educator

Like

Report

Problem 4 Easy Difficulty

Find the length of the curve.

$ r(t) = \cos t i + \sin t j + \ln \cos t k $ , $ 0 \le t \le \frac{\pi}{4} $

Answer

$\ln (\sqrt{2}+1)$

Discussion

You must be signed in to discuss.

Video Transcript

the problem is finding that last out the curve. I t you think what you assigned here? I assigned here Consigned to UK. He's between Sarah. Oh, on dh hi O R. Four. So first of computer prom. This is the connective sci fi. I ask a sign. Yeah, plus science he makes fine. He over consigned here. Hey, from behalf and the girl, the laugh was a curve is he controls it with a girl from Toronto. Pie off or squad relative From there on to pile or for my men to have a party Prom. Thank you. This leaves the court with integral from zero You're high over Or squire a tive. Find his squire us consign his squire And this is a negative tangent city This is passed handed his coin This is equal to its internal from zero toe pied over Or squad would have won us a hand square things one plus tenancy squired This's equal to seek and his going So we have This is incontinence into girl from barrel to pile on So kind Yeah, this is a call to l A Think plast tangent from zero to high off or this is equal to ln return to past one minus Alban war This's equal to Ellen Squadron to class War

WZ
Top Calculus 3 Educators
Catherine R.

Missouri State University

Anna Marie V.

Campbell University

Caleb E.

Baylor University

Joseph L.

Boston College