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Laplace transform if cos⁡(at)u(t) is?

Posted: Thu Jul 14, 2022 9:41 am
by answerhappygod
a) s ⁄ a2+s2
b) a ⁄ a2+s2
c) s2 ⁄ a2+s2
d) a2 ⁄ a2+s2