Recent content by Umayer
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Find the general solution of the differential equation
x = \pm\sqrt{\frac{2}{3}t^3+2t} -2 The constant is zero. It is tricky indeed.- Umayer
- Post #7
- Forum: Calculus and Beyond Homework Help
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Find the general solution of the differential equation
Thanks allot guys I've found the answer.- Umayer
- Post #5
- Forum: Calculus and Beyond Homework Help
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Find the general solution of the differential equation
Homework Statement The equation: \frac{dx}{dt}=\frac{t^2+1}{x+2}. Where the initial value is: x(0) = -2. Homework Equations I believe you have to use the method of seperations of variables. The Attempt at a Solution So I multiplied both sides with x+2. Then I integrated...- Umayer
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- Differential Differential equation General General solution
- Replies: 6
- Forum: Calculus and Beyond Homework Help
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Question about eigenvector and identity matrix
Homework Statement Actually I figured it out, I forgot to put a minus when calculating the determinant. But I'll write down the matrix. This is the matrix given: \begin{pmatrix} 1 & 1 & 2\\ 4 & 0 & 2\\ -2 & 1 & 1 \end{pmatrix} So when determining the eigenvalues the matrix will become...- Umayer
- Post #5
- Forum: Calculus and Beyond Homework Help
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Question about eigenvector and identity matrix
Homework Statement I was doing this practice exam and I had to calculate the eigenvalues en vectors. The matrix had two eigenvalues, I calculated one eigenvector. But when I was performing row operations for the second eigenvector, the matrix with the second eigenvalue substitued became an...- Umayer
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- Eigenvector Identity Matrix
- Replies: 4
- Forum: Calculus and Beyond Homework Help
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Inverse Laplace Transformation of s/(s^2+2s+5)
I did thought of doing that way but I felt that it would take more time doing that method plus my book and my teacher never showed doing that way. But thanks for showing that it's possible to work with imaginary numbers!- Umayer
- Post #9
- Forum: Engineering and Comp Sci Homework Help
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Inverse Laplace Transformation of s/(s^2+2s+5)
The discriminant is a negative number so it cannot be factorised. At least to my knowledge.- Umayer
- Post #7
- Forum: Engineering and Comp Sci Homework Help
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Inverse Laplace Transformation of s/(s^2+2s+5)
Yes now I see it, thanks!- Umayer
- Post #5
- Forum: Engineering and Comp Sci Homework Help
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Inverse Laplace Transformation of s/(s^2+2s+5)
You mean like this? \frac{s+1}{(s+1)^2+2^2} - \frac{1}{(s+1)^2+2^2} The inverse laplace of the first term would be I think then: e^{-t}*cos(2t) But I'm not so sure what to do then since I don't recognize the term in the table, would is be something like this? - \frac{0s+1}{(s+1)^2+2^2} So...- Umayer
- Post #3
- Forum: Engineering and Comp Sci Homework Help
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Inverse Laplace Transformation of s/(s^2+2s+5)
Homework Statement I have some problem finding the inverse laplace transformation of the function: \frac{s}{s^2+2s+5} Homework Equations http://math.fullerton.edu/mathews/c2003/laplacetransform/LaplaceTransformMod/Images/Table.12.2.jpg The Attempt at a Solution I tried to...- Umayer
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- Inverse Laplace
- Replies: 8
- Forum: Engineering and Comp Sci Homework Help
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Slope and deflection of beam sample problem question
Thanks a lot!- Umayer
- Post #3
- Forum: Engineering and Comp Sci Homework Help
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Slope and deflection of beam sample problem question
Homework Statement The sample question explains how I can use superposition to determine the slope and deflection of the beam. I have made a picture of the page. I know how to use the method as I've used it on other, much difficult problems. However, this sample problem has been stuck in my...- Umayer
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- Beam Deflection Slope
- Replies: 2
- Forum: Engineering and Comp Sci Homework Help