Two causal discrete-time signal x[n] and y[n] are related as y [n] = \sum ↙\stackrel{n}{m = 0}x [m] It the z-transform of y [n] \:is\frac{2}{z (z−1) ^{2}}, the value of x[2] is ________.

GATE Electronics and Communications (EC) 2015 Shift 2 Solved Paper

Question : 28 of 65

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Two causal discrete-time signal x[n] and y[n] are related as

y [n] = ∑ ↙{m = 0}↖{n}x [m]

It the z-transform of

y [n] \:is\;{2}/{z\;(z−1)\;^{2}}

, the value of x[2] is ________.

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