X (ej ) = ( frac{(b-a) e^{j }}{e^{-j2 }-(a+b) e^{j } + ab)} ), |b|<1< – McqOptions

MCQOPTIONS

1.	X (e^j) = ( frac{(b-a) e^{j }}{e^{-j2 }-(a+b) e^{j } + ab)} ), \|b\|<1<\|a\| The value of x[n] is __________
A.	b<sup>n</sup> u [n] + a<sup>n</sup> u [n-1]
B.	b<sup>n</sup> u [n] a<sup>n</sup> u [-n-1]
C.	b<sup>n</sup> u [n] + a<sup>n</sup> u [-n-1]
D.	b<sup>n</sup> u [n] a<sup>n</sup> u [n+1]
Answer» D. b<sup>n</sup> u [n] a<sup>n</sup> u [n+1]

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