Recent content by xtipd

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    How Do Hall Effect Sensors Measure Magnetic Fields?

    Homework Statement Hello guys, This is a practice exam problem and I am getting an answer i feel is definitely not right. Anyways here is the question... You are designing a system to measure the magnetic field generated by an electromagnet. This forms part of a feedback control system to...
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    Reducing final answer of laplace transform

    Yeh that's what i meant. Awsome, cheers for the help! thought it was something like that
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    Reducing final answer of laplace transform

    Homework Statement The problem is not getting the answer to the laplace transform but instead reducing my answer so i dnt lose marks. If i work out the laplace transform of: L(t^3 * sinh(4t)) to be 3!/(2(s- 4)^4)- 3!/(s(s+ 4)^4) then how do i add these to get a single fraction? Its doing...
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    Variation of parameters inhomogeneous DE help

    We were given the solution y(1) = x^2 was a solution, then had to prove y(2) = log(x)x^2 is also a solution. Haha your spot on about me getting y(p) via constant coefficients, which i ended up realising just before and ajusted my solution. Seems so stupid now i look back at it. I did end...
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    Variation of parameters inhomogeneous DE help

    Ok here's my problem: 1. Solve the inhomogeneous second order de: x^2y" - 3xy' + 4y =x^4 2. Worked: y(p) = 1/4*x^4 Given: y(1) = x^2 y(2) = log(x)*x^2 3. I just need help getting the roots of the given de so i can determine y(h) of this de. As...
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    Help solving nonhomogeneous de

    So obvious now you have pointed that out. Im all over it like a bad rash now Thanks heaps
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    Help solving nonhomogeneous de

    Hey guys just asking for a bit of help to get me on the right track. I have the non homogeneous de 4y" + 4y' + y = 3*x*e^x, which also has some inital conditions y(0)=0 and y'(0)=0. but i only need help with getting the particular solution. Tried method of constant coefficients and it...
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