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Recent questions tagged userisi2015
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ISIPCB2015C8a
Let $a_{n−1}a_{n−2}...a_0$ and $b_{n−1}b_{n−2}...b_0$ denote the $2's$ complement representation of two integers $A$ and $B$ respectively. Addition of $A$ and $B$ yields a sum $S=s_{n−1}s_{n−2}...s_0.$ The outgoing carry generated at the most ... $\oplus$ denotes the Boolean XOR operation. You may use the Boolean identity: $X+Y=X⊕Y⊕(XY)$ to prove your result.
asked
Mar 26
in
Digital Logic
by
ankitgupta.1729
Boss
(
10.7k
points)

42
views
userisi2015
usermod
digitallogic
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0
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2
ISIPCB2015C5
Consider three relations $R_1(\underline{X},Y,Z), R_2(\underline{M},N,P),$ and $R_3(\underline{N,X})$. The primary keys of the relations are underlined. The relations have $100,30,$ and $400$ tuples, respectively. The space requirements for different attributes ... execution of the join. For, (a), Order could be anything and min. cost =$100*30*400*$total size of all the attributes.
asked
Mar 26
in
Databases
by
ankitgupta.1729
Boss
(
10.7k
points)

24
views
userisi2015
usermod
databases
joins
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votes
0
answers
3
ISIPCB2015C1b
A $64000$byte message is to be transmitted over a $2$hop path in a storeandforward packetswitching network. The network limits packets toa maximum size of $2032$ bytes including a $32$byte header. The transmission lines in the network are error free and have a speed of $50$ ... answer as $1*3*(T_t+T_p) + \;31*T_t$ where $T_t=0.325\; ms$ and $T_p=3.333\; ms$. Please Confirm.
asked
Mar 25
in
Computer Networks
by
ankitgupta.1729
Boss
(
10.7k
points)

39
views
userisi2015
usermod
computernetworks
ippacket
networklayer
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votes
1
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ISIMMA201592
Consider the group $G \;=\; \begin{Bmatrix} \begin{pmatrix} a & b \\ 0 & a^{1} \end{pmatrix}\;: a,b \in \mathbb{R},a>0 \end{Bmatrix}$ ... order (D) $N$ is a normal subgroup and the quotient group is isomorphic to $\mathbb{R}^{+}$(the group of positive reals with multiplication).
asked
Mar 6
in
Set Theory & Algebra
by
ankitgupta.1729
Boss
(
10.7k
points)

92
views
groups
groupisomorphism
engineeringmathematics
userisi2015
usermod
0
votes
0
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5
ISIMMA201544
Let $P_{1},P_{2},$ and $P_{3}$ denote, respectively, the planes defined by $a_{1}x + b_{1}y + c_{1}z = \alpha _{1}$ $a_{2}x + b_{2}y + c_{2}z = \alpha _{2}$ $a_{3}x + b_{3}y + c_{3}z = \alpha _{3}$ It is given ... then the planes (A) do not have any common point of intersection (B) intersect at a unique point (C) intersect along a straight line (D) intersect along a plane
asked
Feb 22
in
Linear Algebra
by
ankitgupta.1729
Boss
(
10.7k
points)

58
views
engineeringmathematics
linearalgebra
userisi2015
usermod
+1
vote
1
answer
6
ISI MMA201527
Let, $cos^{6}\theta = a_{6}cos6\theta + a_{5}cos5\theta + a_{4}cos4\theta + a_{3}cos3\theta + a_{2}cos2\theta + a_{1}cos\theta + a_{0}$ Then $a_{0}$ is (A) $0$ (B) $\frac{1}{32}$ (C) $\frac{15}{32}$ (D) $\frac{10}{32}$ ... 3 equations , I am getting $a_{0} + a_{4} = \frac{1}{2}$ but don't know how to proceed further to get the value of $a_{0}$. Please help.
asked
Feb 21
in
Set Theory & Algebra
by
ankitgupta.1729
Boss
(
10.7k
points)

123
views
engineeringmathematics
userisi2015
usermod
0
votes
1
answer
7
ISI MMA2015
Let, $a_{n} \;=\; \left ( 1\frac{1}{\sqrt{2}} \right ) ... \left ( 1 \frac{1}{\sqrt{n+1}} \right )$ , $n \geq 1$. Then $\lim_{n\rightarrow \infty } a_{n}$ (A) equals $1$ (B) does not exist (C) equals $\frac{1}{\sqrt{\pi }}$ (D) equals $0$
asked
Feb 21
in
Calculus
by
ankitgupta.1729
Boss
(
10.7k
points)

98
views
engineeringmathematics
calculus
userisi2015
usermod
sequenceseries
limits
+1
vote
1
answer
8
ISI MMA2015
If two real polynomials $f(x)$ and $g(x)$ of degrees $m\;(\geq2)$ and $n\;(\geq1)$ respectively, satisfy $f(x^{2}+1) = f(x)g(x)$ $,$ for every $x\in \mathbb{R}$ , then (A) $f$ has exactly one real root $x_{0}$ such that $f'(x_{0}) \neq 0$ (B) $f$ has exactly one real root $x_{0}$ such that $f'(x_{0}) = 0$ (C) $f$ has $m$ distinct real roots (D) $f$ has no real root.
asked
Feb 20
in
Calculus
by
ankitgupta.1729
Boss
(
10.7k
points)

65
views
engineeringmathematics
calculus
userisi2015
usermod
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