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GATE2016127
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Let $S=\sum_{n=0}^{\infty} n\alpha^{n}$ where $\alpha < 1$. The value of $\alpha$ in the range $0 < \alpha < 1$, such that $S=2 \alpha$ is _________.
gate2016ee1
fouriertransform
samplingtheorem
ztransform
numericalanswers
asked
Jan 30, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.3k
points)
retagged
Dec 4, 2019
by
jothee
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