Q. The unit step response of a system is (1 - e^(at)) u(t). Then its impulse response is

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Q. The inverse Laplace transform of 1/(s - a)² is

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Q. Which one of the following digital filters does have a linear phase response?

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Q. cos(nω1t) =

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Q. Fourier transform of e^(-a|t|) is

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Q. Assertion (A): The wave shown in the given figure does not contain the dc component and even harmonics.

Reason (R): If f(- t) = f(t) the wave has only cosine terms.

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Q. If £ f(t) = F(jω), then

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Q. If n is the number of observations and r is the residue, the standard deviation σ =

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Q. Consider these tow statements and answer follow:

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Q. Consider following statements:

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Q. Consider below given statements:

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Q. The z transform of fk = a^k is

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Q. In the given figure f(t) is an even function.

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Q. Which of the following is not true for impulse function δ(t)?

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Q. In the given figure the phase angle of Fn is either 0 or Π.

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Q. For the function f(t) = e^(-at), the Laplace transform is

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Q. The Z inverse of the given Z transform is

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Q. Consider the following two statements :

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Q. Consider the following two statements :

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Q. If x(z) is the Z transform of sequence xk, the z transform of sequence (kxk)is

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