Matrix-vector differential equation proof

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SUMMARY

The discussion centers on proving that the function x(t) = c1y1e^-2t + c2y2e^5t is a solution to the differential equation x' = Ax, where y1 is the matrix (1, -3) and y2 is the matrix (2, 1). The key step involves differentiating x(t) and demonstrating that the result matches A multiplied by x. The participant tracesinair emphasizes the necessity of knowing matrix A to facilitate this proof.

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  • Understanding of matrix calculus
  • Familiarity with differential equations
  • Knowledge of matrix multiplication
  • Experience with exponential functions in the context of differential equations
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  • Learn how to differentiate vector-valued functions
  • Study the properties of matrix exponentials
  • Explore the concept of eigenvalues and eigenvectors in relation to differential equations
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Students studying differential equations, mathematicians focusing on linear algebra, and anyone involved in mathematical proofs related to matrix-vector equations.

tracedinair
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Homework Statement



Prove that x(t) = c1y1e^-2t + c2y1e^5t

is a solution to x' = Ax

given that y1 is the matrix

( 1 )
( -3 ) and y2 is the matrix

(2)
(1)

Homework Equations



The Attempt at a Solution



I've never had to do a lot of proofs and I am not really sure of where to start this problem. I know I'm supposed to differentiate X but I don't know how to do so..
 
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hi tracedinair

do you have the matrix A? if so it could be as easy as calculating x' and A.x and showing they are equivalent
 

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