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Recent questions tagged sequence
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1
GATE2015235
The $z$Transform of a sequence $x[n]$ is given as $X(z)=2z+44/z+3/z^{2}$. If $y[n]$ is the first difference of $x[n]$, then $Y(z)$ is given by $2z+28/z+7/z^{2}3/z^{3}$ $2z+26/z+1/z^{2}3/z^{3}$ $2z2+8/z7/z^{2}+3/z^{3}$ $4z28/z1/z^{2}+3/z^{3}$
asked
Feb 12, 2017
in
Signals and Systems
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
sequence
complexfrequencydomainrepresentation
0
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2
GATE20152GA9
If the list of letters, $P, R, S, T, U$ is an arithmetic sequence, which of the following are also in arithmetic sequence? I. $2P, 2R, 2S, 2T, 2U$ II. $P3, R3, S3, T3, U3$ III. $P^{2}, R^{2}, S^{2}, T^{2}, U^{2}$ $I$ only $I$ and $II$ $II$ and $III$ $I$ and $III$
asked
Feb 12, 2017
in
Numerical Ability
by
makhdoom ghaya
(
9.2k
points)
gate2015ee2
logical
sequence
0
votes
0
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3
GATE20161GA5
In a quadratic function, the value of the product of the roots $(\alpha, \beta)$ is $4$. Find the value of $\frac{\alpha^{n}+\beta^{n}}{\alpha^{n}+\beta^{n}}$ $n^{4}$ $4^{n}$ $2^{2n1}$ $4^{n1}$
asked
Jan 30, 2017
in
Linear Algebra
by
makhdoom ghaya
(
9.2k
points)
gate2016ee1
functions
roots
sequence
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