
Advanced Engineering Mathematics
10th Edition
ISBN: 9780470458365
Author: Erwin Kreyszig
Publisher: Wiley, John & Sons, Incorporated
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Please do A and C

Transcribed Image Text:ot f(t) on [0, 0).
action
x(t)
6,
6et-3,
0≤t <3,
3<t<4,
4≤t<6,
t≥ 6,
0,
and find the Laplace tranform X (s).
6. Solve the following initial value problems using Laplace transforms.
a) x² + 5x = H (t− 2), x(0) = 1.
b) x² + x = sin 2t,
x(0) = 0.
c) x" - x² - 6x = 0,
d) x" - 2x² + 2x = 0,
e) x" - 2x² + 2x = et,
f) x" - x' =0, x(0) = 1, x'(0) = 0.
g) x" +0.4x' + 2x = 1 - H(t-5), x(0)=0, x'(0) = 0.
h) x" + 9x = sin 3t, x(0) = 0, x'(0) = 0.
i) x" -2x = 1, x(0) = 1, x'(0) = 0.
j) x' = 2x + H(t-1), x(0) = 0.
7. Sketch the function f(t) = 2H(t - 3) - 2H(t - 4) and find its La
transform.
x(0) = 2, x'(0) = -1
x(0) = 0, x'(0) = 1.
x(0)=0, x'(0) = 1.
8. Find the Laplace transform of f(t) = t²H(t-3).
9. Invert F(s) = (-2)4
10. Find the inverse transform of
F(s)
1-e-48
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