[mage lang="en|es|en" source="flickr"]calculus answers early transcendentals[/mage]

**Arc Length and Surface Area of Rev. Help please.?**

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*My chapter 8 and 10 test is Monday at noon, so I was reviewing for it. The questions I have are from “Early Transcendentals Calculus” by James Stewart(version 5). I don’t have the solutions manual, so I only have the answers to the odd problems.*

I’ll tell you the problem, page, and how far I got.

Arc Length Quest:

pg.552(#7)

y=(x^5)/6 + 1/(10^3), 1<=x<=2

L = Integration from 1 to 2: (1+((5x^4)/6 - 3/(10x^2))^2)^1/2

I couldnn't figure out what kind of substitution to use

(answer:1261/240)

pg.552(#15)

y=e^x, 0<=x<=1

L= Integration from 0 to 1: ((1 + e^(2x))^2)/(e^x)

I was trying to use tanu=e^x, but since (secu)^2=e^xdx, I didn't know what to do.

Surface Area of Rev Quests:

pg.559(#11)

x=((y^2 + 2)^(2/3))/3, 1<=y<=2

All I did was put this into the formula and was utterly confused.

pg.559(#3)

y=secx, 0

I think I have the solutions manual to that book. It’s a big blue one with a violin on front huh? If you send me your email address, I can send you the sol. man.

**My Nintendo Wii Disc Reading Problems**