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The bilateral Laplace transform of e^t cos 2tu left( - t...

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Transform Theory
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The bilateral Laplace transform of $${e^t}\cos 2tu\left( { - t} \right) + {e^{ - t}}u\left( t \right) + {e^{\frac{t}{2}}}u\left( t \right)$$      is

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Correct Answer: Option A
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