1.

Find the transfer function of a system given by equation d2‚ÅÑdt2 y(t-a) + x(t) + 5 d‚ÅÑdt y(t) = x(t-a).$

A. (e<sup>-as</sup>-s)/(1+e<sup>-as</sup> s<sup>2</sup>)
B. (e<sup>-as</sup>-5s)/(e<sup>-as</sup> s<sup>2</sup>)
C. (e<sup>-as</sup>-s)/(2+e<sup>-as</sup> s<sup>2</sup>)
D. (e<sup>-as</sup>-5s)/(1+e<sup>-as</sup> s<sup>2</sup>)
Answer» E.


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