Question
$$\mathscr{L}\left\{\cos ^{2} t\right\}=\mathscr{L}\left\{\frac{1}{2}+\frac{1}{2} \cos 2 t\right\}=\frac{1}{2 s}+\frac{1}{2} \frac{s}{s^{2}+4}$$
Step 1
Step 1: Start with the function we want to find the Laplace transform of, which is \(\cos^2 t\). Show more…
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