Linear First Order ODE? Substitution?

**yianni** · September 18th 2009, 11:09 PM

*edit*
Solved, please delete topic.

**chisigma** · September 18th 2009, 11:23 PM

Let's write the DE in general form as...

$\frac{dq}{dt} = a\cdot q^{2} + b = b\cdot (1+\frac{a}{b}\cdot q^{2})$ (1)

... and it can be solved in standard fashion writing...

$\frac{dq}{1+ \frac{a}{b}\cdot q^{2}} = b\cdot dt$ (2)

... and then integrate both terms...

Kind regards

$\chi$ $\sigma$

**Krizalid** · September 19th 2009, 07:05 AM

Originally Posted by yianni

*edit*
Solved, please delete topic.

no, what'd be the fun with that? it makes no sense.

do you believe is right by deleting each topic that is solved? (or if you solved by your own?) then people here would learn nothing, so in that case a math forum shouldn't exist.

think again before deleting a question.

Thread: Linear First Order ODE? Substitution?

LinkBack

Thread Tools

Display

Linear First Order ODE? Substitution?

Similar Math Help Forum Discussions

First order ODE involving substitution

Second order D.E involving substitution

First order linear - substitution - why take the +ve square root?

Second order linear equations, reduction of order

2nd order homogenous in to 1st order linear systems

Search Tags