# Math Help - Differential Equations helps

1. ## Differential Equations helps

pls show your step thank you.

2. Originally Posted by saii
pls show your step thank you.
OK, here is my step. The first step, in fact. The differential equation is seperable.

If you need more help, please show all your steps and say where you get stuck.

3. it will be good if u show me the solution because i am totally lost. thanks. sorry for giving u trouble.

4. Originally Posted by saii
it will be good if u show me the solution because i am totally lost. thanks. sorry for giving u trouble.
You can't be totally lost? Surely you know something? I have told you what type of differential equation it is. What you need to do now is go back and review your notes if you really are totally lost on what to do next.

5. i nv learn this before just 1 to know how to do it... next time, when i see this question i will know what to do...

6. Originally Posted by saii
i nv learn this before just 1 to know how to do it... next time, when i see this question i will know what to do...
If you have never learned this before then I don't know why you are attempting the question. Here is a link. Read it: Pauls Online Notes : Differential Equations - Separable Equations

7. Originally Posted by saii
pls show your step thank you.
$y\sqrt{1 - 9x^2}\,dy = 3(1 - y^2)\,dx$

$\frac{y}{1 - y^2}\,dy = \frac{3}{\sqrt{1 - 9x^2}}\,dx$

$\int{\frac{y}{1 - y^2}\,dy} = \int{\frac{3}{\sqrt{1 - 9x^2}}\,dx}$

Do you see how we've separated the terms so all the y's are on one side and all the x's on the other? That's what's meant by a separable DE.

You should be able to go from here.

P.S. not undermining you Mr F - it's just the OP had no idea what was meant by separable.