Question

In: Advanced Math

The formula for a particular solution given in (3.42) applies to the more general problem of...

The formula for a particular solution given in (3.42) applies to the more general problem of solving y" + p(t)y' + q(t)y = f(t). In this case, y1 and y2 are independent solutions of the associated homogeneous equation y" + p(t)y' + q(t)y = 0. In the following, show that y1 and y2 satisfy the associated homogeneous equation, and then determine a particular solution of the inhomogeneous equation:

b.) ty" - (t + 1)y' + y = t2e2t; y1(t) = 1 + t, y2(t) = et (answer should be: 1/2 (t -1) e2t + 1/2 + t/2 )

c.) t2y" - 3ty' + 4y = t5/2; y1(t) = t2, y2(t) = t2ln(t) (answer should be: 4t5/2 )

Solutions

Expert Solution


Related Solutions

GOAL Apply the more general definition of torque. PROBLEM (a) A man applies a force of...
GOAL Apply the more general definition of torque. PROBLEM (a) A man applies a force of F = 3.00 102 N at an angle of 60.0° to the door of Figure (a), 2.00 m from the hinges. Find the torque on the door, choosing the position of the hinges as the axis of rotation. (b) Suppose a wedge is placed 1.50 m from the hinges on the other side of the door. What minimum force must the wedge exert so...
In exercises 1–4, verify that the given formula is a solution to the initial value problem....
In exercises 1–4, verify that the given formula is a solution to the initial value problem. 2. Powers of t. b) y ′ = t^3 , y(0) = 5: y(t) = (1/5)t^(4) + 5 3. Sines and cosines. a) x′ = −y, y′ = x, x(0) = 1, y(0) = 0: x(t) = cost, y(t) = sint
y"-2y'+y=cos2t 1. general solution of corresponding homongenous equation 2. particular solution 3.solution of initial value problem...
y"-2y'+y=cos2t 1. general solution of corresponding homongenous equation 2. particular solution 3.solution of initial value problem with initial conditions y(0)=y'(0)=0
y"+y'-6y=1 1. general solution of corresponding homogenous equation 2. particular solution 3.solution of initial value problem...
y"+y'-6y=1 1. general solution of corresponding homogenous equation 2. particular solution 3.solution of initial value problem with initial conditions y(0)=y'(0)=0
y"+y=cos(9t/10) 1. general solution of corresponding homongenous equation 2. particular solution 3.solution of initial value problem...
y"+y=cos(9t/10) 1. general solution of corresponding homongenous equation 2. particular solution 3.solution of initial value problem with initial conditions y(0)=y'(0)=0 4. sketch solution in part 3
Find the general solution of the following differential equations (complementary function + particular solution). Find the...
Find the general solution of the following differential equations (complementary function + particular solution). Find the particular solution by inspection or by (6.18), (6.23), or (6.24). Also find a computer solution and reconcile differences if necessary, noticing especially whether the particular solution is in simplest form [see (6.26) and the discussion after (6.15)]. (D2+2D+17)y = 60e−4x sin 5x
Given the complementary solution and the differential equation, Give the particular and the total solution for...
Given the complementary solution and the differential equation, Give the particular and the total solution for the initial conditions. Use C1 and C2 for the weights, where C1 is associated with the root with smaller magnitude. If the roots are complex, the complementary solution is the weighted sum of complex conjugate exponentials, which can be written as a constant times a decaying exponential times a cosine with phase. Use C1 for the constant and Phi for the phase. (Note: Some...
Derive the variation of parameters formula for the solution of the initial value problem for a...
Derive the variation of parameters formula for the solution of the initial value problem for a non-homogeneous, linear system of first order, ordinary differential equations in terms of a fundamental matrix of solutions of the corresponding homogeneous problem.
Find a particular solution for ?^2?′′ + ??′ − 4? = ?^3 Given the fact that...
Find a particular solution for ?^2?′′ + ??′ − 4? = ?^3 Given the fact that the general homogeneous solution is ??(?) = ?1(?^2) + ?2t(?^−2)
(a) Write a general expression for yp(x) a particular solution to the nonhomogeneous differential equation [Do...
(a) Write a general expression for yp(x) a particular solution to the nonhomogeneous differential equation [Do not evaluate the coefficients] y′′ + 2y′ + 2y = e-x (4x + sin x) + 2 cos(2x). (b) Solve the initial value problem y′′ - y = 1 + 4ex; y(0) = 1; y′(0) = 2:
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT