Solve the differential equation Y’(t) = AY(t), with initial
condition Y(0) = [1;0] (a 2x1 matrix); where A = [ 9 , 5 ; -6 , -2
]. Then, using Euler’s method with step size h=.1 over [ 0 , .5 ]
fill in the table with header where the 2x1 matrix Yi is the
approximation of the exact solution Y(ti) :
t Yi Y(ti) ||Y(ti) – Yi ||
Consider the system modeled by the differential equation
dy/dt - y = t with initial condition y(0) = 1
the exact solution is given by y(t) = 2et − t − 1
Note, the differential equation dy/dt - y =t can be written as
dy/dt = t + y
using Euler’s approximation of dy/dt = (y(t + Dt) – y(t))/ Dt
(y(t + Dt) – y(t))/ Dt = (t + y)
y(t + Dt) =...
Consider the differential equation
y′(t)+9y(t)=−4cos(5t)u(t),
with initial condition y(0)=4,
A)Find the Laplace transform of the solution
Y(s).Y(s). Write the solution as a single
fraction in s.
Y(s)= ______________
B) Find the partial fraction decomposition of Y(s). Enter all
factors as first order terms in s, that is, all terms
should be of the form (c/(s-p)), where c is a constant and the root
p is a constant. Both c and p may be complex.
Y(s)= ____ + ______ +______
C)...
Consider the equation: ?̇ +2? = ?(?) with initial condition x(0)
= 2
(a) If u(t) = 0, find the solution ?(?). What is ?(?) as t ->
∞?
(b) If u(t) = 4+t, find the solution ?(?). What is ?(?) as t
-> ∞?
(c) If u(t) = ?3?, find the solution ?(?). What is
?(?) as t -> ∞?
(d) If u(t) = δ(t), find the solution ?(?). What is ?(?) as t
-> ∞?
Find the particular solution of the first-order linear
differential equation for
x > 0
that satisfies the initial condition. (Remember to use
absolute values where appropriate.)
Differential Equation Initial Condition
x dy = (x + y + 7) dx
y(1) = 6
y =
Consider the differential equation dy/dt = 2?square
root(absolute value of y) with initial condition y(t0)=y0
• For what values of y0 does the Existence Theorem apply?
• For what values of y0 does the Uniqueness theorem apply?
• Verify that y1(t) = 0 solves the initial value problem with y0 =
0
• Verify that y2(t) = t2 solves the initial value problem with y0 =
0
• Does this violate the theorems from this section 1.5? Why or why...
1.) Let f′(x) = 3x^2 − 8x. Find a particular solution that
satisfies the differential equation and the initial condition f(1)
= 12.
2.) An object moving on a line has a velocity given by v(t) =
3t^2 −4t+6. At time t = 1 the object’s
position is s(1) = 2. Find s(t), the object’s position at any
time t.