A community for students.
Here's the question you clicked on:
 0 viewing
razroz
 3 years ago
Evaluate the line integral f(x,y)ds along the parametric curve: f(x,y)=3x+4y^2;x=2t1, y=t+5, 1(<or=) t (<or=) 2
razroz
 3 years ago
Evaluate the line integral f(x,y)ds along the parametric curve: f(x,y)=3x+4y^2;x=2t1, y=t+5, 1(<or=) t (<or=) 2

This Question is Closed

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1\[ds =\sqrt{(x')^2+(y')^2}\]

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1well, in this case i spose fx and fy for partials

razroz
 3 years ago
Best ResponseYou've already chosen the best response.0so i take the partial of both x and y with respect to t and plus that under a square root next to the function f(x,y) and integrate?

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1yes, but dont forget to replace x and y with their t equations within f f(x,y)=3x+4y^2;x=2t1, y=t+5 f(t)=3(2t1)+4(t+5)^2

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1or am i mixing things up?

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1im mixing a vector feild in with this i believe

razroz
 3 years ago
Best ResponseYou've already chosen the best response.0no i believe you are right, let me write it out real quick

Algebraic!
 3 years ago
Best ResponseYou've already chosen the best response.1you're fine @amistre64

razroz
 3 years ago
Best ResponseYou've already chosen the best response.0so i would just get a sqrt(5) from the ds, then the function would read integral of (3(2t1)+4(t+5)^2)dt (times the sqrt(5))?

amistre64
 3 years ago
Best ResponseYou've already chosen the best response.1yep, but put the sqrt5 inside the integral

Algebraic!
 3 years ago
Best ResponseYou've already chosen the best response.1yes correct, @razroz
Ask your own question
Sign UpFind more explanations on OpenStudy
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.