f(t) = 7t² – te¬4t -s3+14s+56 -s³+14s² +224 а. F(s): с. F(s) %3D s4+4s3 s5+16s3 -s3+14s²+56 -s3+14s²+112s+224 b. F(s) d. F(s) s5+4s3 $5+8s4+16s³

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Evaluate the Laplace Transform of f(t) = 7t^2 - te^(-4t).. Single choice.

 
f(t) = 7t2 – te
-s3+14s+56
-s3+14s2 +224
а. F(s) -
с. F(s)
s5+16s3
-s3+14s2+112s+224
s4+4s3
-s3+14s2 +56
b. F(s)
d. F(s)
s5+4s3
$5+8s4+16s3
Transcribed Image Text:f(t) = 7t2 – te -s3+14s+56 -s3+14s2 +224 а. F(s) - с. F(s) s5+16s3 -s3+14s2+112s+224 s4+4s3 -s3+14s2 +56 b. F(s) d. F(s) s5+4s3 $5+8s4+16s3
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