1
GATE ECE 2005
MCQ (Single Correct Answer)
+1
-0.3
Let x(n) = $${\left( {{1 \over 2}} \right)^n}$$ u(n), y(n) = $${x^2}$$, and Y ($$({e^{j\omega }})\,$$ be the Fourier transform of y(n). Then Y ($$({e^{jo}})$$ is
A
$${1 \over 4}$$
B
2
C
4
D
$${4 \over 3 }$$
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