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Question

The inverse Laplace Tranform of 1s2+2s is,

A
(1e2t)
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B
(1+e+2t)2
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C
(1e+2t)2
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D
(1e2t)2
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Solution

The correct option is D (1e2t)2
L1[1s2+2s]
=L1[1s(s+2)]
= L1[12(2+sss(s+2))]
= 12L1[1s1s+2]
=12(1e2t)

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