

MCQOPTIONS
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1. |
Find the \(L^{-1} \left (\frac{s}{(s^2+1)(s^2+2)(s^2+3)}\right )\). |
A. | \(\frac{1}{2} cos(t)-cos(\sqrt3t)-\frac{1}{2} cos(\sqrt3t)\) |
B. | \(\frac{1}{2} cos(t)+cos(\sqrt2t)-\frac{1}{2} cos(\sqrt3t)\) |
C. | \(\frac{1}{2} cos(t)-cos(\sqrt2t)-\frac{1}{2} cos(\sqrt3t)\) |
D. | \(\frac{1}{2} cos(t)+cos(\sqrt2t)+\frac{1}{2} cos(\sqrt3t)\) |
Answer» D. \(\frac{1}{2} cos(t)+cos(\sqrt2t)+\frac{1}{2} cos(\sqrt3t)\) | |