The solution to the Initial value problem
x′′+2x′+17x=2cos(6t),x(0)=0,x′(0)=0 is the sum of the steady
periodic solution xsp and the transient solution xtr. Find both xsp
and xtr.
Homework 1.1. (a) Find the solution of the initial value problem
x' = x^(3/8) , x(0)=1 , for all t, where x = x(t). (b) Find the
numerical solution on the interval 0 ≤ t ≤ 1 in steps of h = 0.05
and compare its graph with that of the exact solution. You can do
this in Excel and turn in a printout of the spreadsheet and
graphs.
1) Find f(x) by solving the initial value problem. f'
(x) = e x − 2x; f (0) = 2
2) A rectangular box is to have a square base and a
volume of 20f t^3 . If the material for the base costs 30¢/f t^2 ,
the material for the sides costs 10¢/ft^2 , and the material for
the top costs 20¢/f t^2 , determine the dimensions of the box that
can be constructed at minimum cost.