My Lecturer give me this problems, help please, ...not all, .. one number is all right, at least I'll get an example to solve the other ....

Thank you very much

Results 1 to 8 of 8

- March 13th 2008, 06:38 PM #1

- March 13th 2008, 06:57 PM #2

- Joined
- Nov 2005
- From
- New York City
- Posts
- 10,616
- Thanks
- 10

- March 13th 2008, 07:08 PM #3

- March 13th 2008, 07:41 PM #4

- Joined
- May 2006
- From
- Lexington, MA (USA)
- Posts
- 11,941
- Thanks
- 798

- March 16th 2008, 07:10 AM #5
I try thtat , and the equation become

**Bernoulli Eq**. and I should use**Substitution**to make it become**Linear D.E**?

After I get the homogeneous solution then wath should I do, I mean, how to use the undetermined coefficient method? should I convert the "sinx " in to "e^ia thing"

And for number**5)**, the**variation of parameters methode**is the methode taht using**wronskian**? Sorry i can't remember the name of the methods...

**Thanks Again**

- March 16th 2008, 07:32 AM #6

- March 16th 2008, 07:46 AM #7After I get the homogeneous solution then wath should I do, I mean, how to use the undetermined coefficient method? should I convert the "sinx " in to "e^ia thing

Method of undetermined coefficients - Wikipedia, the free encyclopedia

after reading this article you'll come to the conclusion that you should assume a particular solution of following form:

just plug it in the ode and equate the appropriate coefficients.

- March 16th 2008, 06:34 PM #8