Recent content by specwarop

Ah okay, thanks for your reply. One thing I am not understanding is the multiplication into the equation of the integrating factor. It has confused me on equations other than this one also. Here is another example of an equation that is confusing me: \frac{1}{x} . \frac{dy}{dx} -...

Gday, Just trying to work out the following linear differential equation. I'm trying to work it out via the Integrating Factor method and I am getting stuck at the point where you multiply both sides by I(x). The equation is: xy' - 2y = x2 Can anyone help me out with this? Regards...

Thanks man for your help! Ill have a look at it again tomorrow! For now, its new years eve time! Have fun!

Okay sweet, thanks for that. Next dumb question, how do you integrate the left side when dx is up the top like that? Thanks for your help!

Yeh but then on the right side you have (dy/dx)/y How would you then get the dx over to the left side? Regards

Gday, Just having a problem doing the initial rearrangement, before I integrate it, of the following differential equation to get the y's and x's on the same side: (x2+1)y' = xy Can anyone help me out with this? I've been trying all day to get both x and y on either side but I can't...

Gday, Just a quick one regarding integration. The rules at the back of my calculus book states that the Integral of tan(u) du = In(|sec u|) + C However, my calculators and Wolfram all give me the answer as being tan(u) du = -In(|cos u|) + C Which one is correct, which do I believe...

Gday all, Just writing today about my current problem - not knowing what I want to do when i graduate, from my Physics degree. At the moment I'm not particularly keen on a lab sort of position, where I would be restricted to a lab for say, 95%+ of a given work day. I would like a active...

Okay another projectile motion question. I'm a bit confused by how to work this out. --- A cannon will a muzzle speed of 1000m/s is used to start an avalanche on a mountain slope. The target is 2000m from the cannon horizontally and 800m above the cannon. At what angle, above the horizontal...

Gday, Just need a bit of help with this one. I have done the calcs and gotten the end answer as per the answers at the back of the book, but I am not quite understanding it. -- A particle initially located at the origin has an acceleration of a=3.00j m/s^2 and an initial velocity of...