1.

If f(t) = tn n, then its Laplace transform is?

A. ( frac{s+a}{(s-a)}{(s-a)^2+b^2} )
B. ( frac{b^2}{(s-a)}{(s-a)^2+b^2} )
C. ( frac{2a^3}{(s^2+a^2)} )
D. ( frac{(n-1)!}{s^{n+1}} )
Answer» E.


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