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Question

The Laplace transform of the function sin22t is

A
12ss2(s2+16)
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B
s(s2+16)
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C
1sss2+4
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D
ss2+4
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Solution

The correct option is A 12ss2(s2+16)
L(sin22t)=L(1cos4t2)
=L(12)L(cos4t2)
=12ss2(s2+42)
=12ss2(s2+16)

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