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1. |
Find the Laplace transform of (cos2t)3 u(t). |
A. | \(\frac{s(s^2+28)}{(s^2+36)(s^2+4)}\) |
B. | \(\frac{s(s^2+36)}{(s^2+28)(s^2+4)}\) |
C. | \(\frac{s(s^2+4)}{(s^2+36)(s^2+28)}\) |
D. | \(\frac{s}{(s^2+36)(s^2+4)}\) |
Answer» B. \(\frac{s(s^2+36)}{(s^2+28)(s^2+4)}\) | |