1.

If f(t) = cos(at), its Laplace transform is given by?

A. s s<sup>2</sup>+a<sup>2</sup>
B. a s<sup>2</sup>+a<sup>2</sup>
C. 2 s
D. Does not exist
Answer» B. a s<sup>2</sup>+a<sup>2</sup>


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