1.

Find the (L^{-1} ( frac{1}{s(s^2+4)}) ).

A. ( frac{1-sin u2061(t)}{4} )
B. ( frac{1-cos u2061(t)}{4} )
C. ( frac{1-sin u2061(2t)}{4} )
D. ( frac{1-cos u2061(2t)}{4} )
Answer» E.


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