Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
lukea
Group Title
I'm baffled by Pset 1G5(b). I've checked the answer and can't make sense of it.
1. I don't see how all terms but the one provided contain a 0factor.
2. I don't understand the reasoning behind the following:
"If u =x^p, then u^p = p!"
Does the p here refer only to the pth derivative of u, or also to the pth power of x?
FWIW, I calculated the third derivative of 1G5(a), and found the following. (The 3rd derivative is not given in the solution sheet.):
y''' = u'''v + 3u''v' + 3u'v'' +uv'''
Thank you!
 one year ago
 one year ago
lukea Group Title
I'm baffled by Pset 1G5(b). I've checked the answer and can't make sense of it. 1. I don't see how all terms but the one provided contain a 0factor. 2. I don't understand the reasoning behind the following: "If u =x^p, then u^p = p!" Does the p here refer only to the pth derivative of u, or also to the pth power of x? FWIW, I calculated the third derivative of 1G5(a), and found the following. (The 3rd derivative is not given in the solution sheet.): y''' = u'''v + 3u''v' + 3u'v'' +uv''' Thank you!
 one year ago
 one year ago

This Question is Closed

van1234 Group TitleBest ResponseYou've already chosen the best response.0
Yeah the notation is a little bit funky here. \[u = x ^{p}\] is just a function u where p is just an exponent. The other one which is: \[u ^{(p)}\] (notice the parentheses) Basically means that you are taking the derivative of the function u, p times. The higher derivatives are surrounded by ( ) so you can distinguish them from just normal exponents. And from the looks of it, you third derivative looks good.
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.