Derive the solution of homogeneous state equations
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A first order differential equation is said to be homogeneous if it may be written. where f and g are homogeneous functions of the same degree of x and y. In this case, the change of variable y = ux leads to an equation of the form.
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Answer:Taking Laplace transform of Eq. (9.55), we get,
sX(s) − x(0) = AX(s)
∴ (sI – A) X(s) = x(0)
∴ X (s) = (sI – A)−1x(0) (9.56)
∴ X(s) = ϕ(s) x (0) (9.57)
where ϕ(s) = (sI – A) −1 (9.58)
called the resolvent matrix.
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Taking inverse Laplace transform of Eq. (9.59), it can be written as
x(t) = ϕ(t) x(0) (9.60)
where ϕ(t) is given in Eq. (9.60) ...
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