A community for students.
Here's the question you clicked on:
 0 viewing
gerryliyana
 3 years ago
I need help ! Pleaseee
Solve
(x2y +1) dx + (4x 3y 6) dy = 0
gerryliyana
 3 years ago
I need help ! Pleaseee Solve (x2y +1) dx + (4x 3y 6) dy = 0

This Question is Closed

xon1300
 3 years ago
Best ResponseYou've already chosen the best response.0use green's theorem ( http://en.wikipedia.org/wiki/Green%27s_theorem )

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0Seriously??? can you tell me how to solve it?

xon1300
 3 years ago
Best ResponseYou've already chosen the best response.0It's been a while since i took calculus 3

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0have you any idea, @CynosureEPR ?????

CynosureEPR
 3 years ago
Best ResponseYou've already chosen the best response.0I'm sorry =( I do know how to do it but I'm rushed with a programming assignment (worth 40% of grade) due at midnight =(

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0ok no problem @CynosureEPR :) good luck for u :)

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0@zepp have u any idea??

zepp
 3 years ago
Best ResponseYou've already chosen the best response.0Nope, I'm only at Calc II, sorry ):

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0ok np @zepp thank u for coming :)

mahmit2012
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1354582292989:dw

ChmE
 3 years ago
Best ResponseYou've already chosen the best response.0\[(x2y +1) dx + (4x 3y 6) dy = 0\]\[(x2y +1) dx = (4x 3y 6) dy \]\[\frac{ dy }{ dx }=\frac{ (x2y+1) }{ (4x 3y 6) }\]

ChmE
 3 years ago
Best ResponseYou've already chosen the best response.0Do you know how to do separation of variables? http://en.wikipedia.org/wiki/Separation_of_variables

ChmE
 3 years ago
Best ResponseYou've already chosen the best response.0This looks like a diff eq question

ChmE
 3 years ago
Best ResponseYou've already chosen the best response.0nvm, I don't think we can use that here

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0then ???? how to solve y?? i really know separation variable, but in this case that method cannot work,

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0yes.., i think so.., we cannot use that in this case.., :)

ChmE
 3 years ago
Best ResponseYou've already chosen the best response.0My teacher skipped partial derivatives and that looks like what is needed for this problem. I'm going to tapout. Good luck

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0i see.., wonderful site for me.., thank u @ChmE,

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0solve the system of equation \[\large \left(\begin{matrix}x2y+1=0 \\ 4x3y6=0\end{matrix}\right)\]

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0when you get the solution, say x0 and y0, use u = x  x0 and v = y  y0. try this @gerryliyana

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0did you get this DE? \[\large (u2v)du + (4u3v)dv=0\] x changed to u, y changed to v, the constants +1 and 6 disappeared.

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0\[\left( \frac{ x  2y + 1 }{ 4x 3y  6 } \right) \times \left[ \frac{ 4 }{ 1 } \right]\] \[\left( \frac{ 4x  8y + 4 }{ 4x  3y 6 } \right) = 0\] \[\left( \frac{ 4x  8y = 4 }{ 4x 3y= 6 } \right)\]  __ \[8y (3y) = 10 \rightarrow y = 2\] \[4x  3(2) = 6 \rightarrow x = 3\]

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0on the right track. now, u = x  3 and v = y  2

gerryliyana
 3 years ago
Best ResponseYou've already chosen the best response.0OMG..., my connection is lost, and I lost all my type, :(

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0hahaha. enter them a few equations at a time.

sirm3d
 3 years ago
Best ResponseYou've already chosen the best response.0don't worry. you are not the first one.
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.