Question

(1 point) Consider the following initial value problem: $x'' + 36x = \begin{cases} 2, & 0 \le t \le 5 \\ 0, & t > 5 \end{cases}$, $x(0) = 4$, $x'(0) = 0$. Solve for the Laplace transform of $x(t)$. $X(s) = \mathcal{L}\{x(t)\} = \frac{2(1-e^{-2s}) + 4s^2}{s(s^2 + 36)}$

          (1 point) Consider the following initial value problem:
$x'' + 36x = \begin{cases} 2, & 0 \le t \le 5 \\ 0, & t > 5 \end{cases}$, $x(0) = 4$, $x'(0) = 0$.
Solve for the Laplace transform of $x(t)$.
$X(s) = \mathcal{L}\{x(t)\} = \frac{2(1-e^{-2s}) + 4s^2}{s(s^2 + 36)}$
        
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(1 point) Consider the following initial value problem:
x” + 36x =  2,     0 ≤ t ≤ 5 
 0,     t > 5, x(0) = 4, x'(0) = 0.
Solve for the Laplace transform of x(t).
X(s) = ℒ{x(t)} = (2(1-e^-2s) + 4s^2)/(s(s^2 + 36))

Added by Adam G.

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Elementary and Intermediate Algebra
Elementary and Intermediate Algebra
Alan S. Tussy, R. David Gustafson 5th Edition
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Please help with homework. 1. Consider the following initial value problem: J2, 0 < t < 5: 9 + x(0) = 4x(0) = 0, t > 5 Solve for the Laplace transform of x(t): X(s) = {x(t)} = (2(1 - e^(-2s)) + 4s^2) / (s(s^2 + 36)) Help with formulas.
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Transcript

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00:01 In problem 1, that is the question number 1, our given function f of t, it gives 1 if t lies between 0 to 1, it gives 0 if t lies between 1 to 2, it gives 1 if t lies between 2 to 3, it gives 0 if t greater than equal to 3.
00:27 So, to find the laplace of the given function f of t, first of all we can write the given function f of t by using the unit function, we can express this function like as 1 multiply 2, that is u naught negative u1 of t plus 0 times of u1 of t negative u2 of t plus 1 times of u2 of t negative u3 of t plus 0 times of u3 of t.
01:13 So, this will is equal to the 1 times of u naught negative u1 of t plus 1 times of u2 of t negative 1 times of u3 of t.
01:28 So, now further again plus 0, further apply the laplace transform on both side, the laplace of u naught of t negative laplace of u1 of t positive the laplace of u2 of t negative laplace of u3 of t, so that is 1 over s negative e to the power of negative s over s plus e to the power of negative s twice of s over s negative e to the power of negative 3s over s...
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