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1 votes
1 answer
7531
set theory
"Is every finite lattice a bounded lattice ??" please support your answer by giving some informal proof ?
"Is every finite lattice a bounded lattice ??" please support your answer by giving some informal proof ?
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2 votes
0 answers
7532
closure properties of relations
Do the relations 1)symmetric 2)reflexive 3)transitive 4)asymmetric 5)anti -symmetric 6)equivalence are closed under union , intersection,symmetric difference , complement etc Explain by Example.
Do the relations 1)symmetric2)reflexive3)transitive 4)asymmetric 5)anti -symmetric 6)equivalence are closed under union , intersection,symmetric difference , comple...
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1 votes
2 answers
7535
probability
Out of (2n + 1) tickets consecutively numbered three are drawn at random. Find the probability that the numbers on them are in arithmetic progression? 3n/4n2-1 2n/4n2-1 2n/4n2+1 2n/2n2+1
Out of (2n + 1) tickets consecutively numbered three are drawn at random. Find the probability that the numbers on them are in arithmetic progression?3n/4n2-12n/4n2-12n/4...
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0 votes
1 answer
7536
LIMITS CALCULUS
Will it be 0 ? Anyone explain please
Will it be 0 ? Anyone explain please
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1 votes
2 answers
7539
graph theory
The number of independent sets in a complete graph with n vertices is ____
The number of independent sets in a complete graph with n vertices is ____
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2 votes
1 answer
7542
ISI 2016 PCB C8
Consider $2n$ committees, each having at least $2n$ persons, formed from a group of $4n$ persons. Prove that there exists at least one person who belongs to at least $n$ committees.
Consider $2n$ committees, each having at least $2n$ persons, formed from a group of $4n$ persons. Prove that there exists at least one person who belongs to at least $n$ ...
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0 votes
1 answer
7543
probability
A and B play a game where each is asked to select a number from 1 to 25 .If two numbers match ,both of the win a prize .the probability that they will not win a prize in a single trail is.
A and B play a game where each is asked to select a number from 1 to 25 .If two numbers match ,both of the win a prize .the probability that they will not win a prize in...
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0 votes
2 answers
7547
combinatorics
In how many ways can a group of n people be divided into pairs(2 people) ,given that n is an even number ?
In how many ways can a group of n people be divided into pairs(2 people) ,given that n is an even number ?
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0 votes
1 answer
7549
set theory
Is (S,R) a poset if S is the set of all people in the world and (a, b) ∈ R, where a and b are people, if "a and b have a common friend" ? this is not transitive ....right ?
Is (S,R) a poset if S is the set of all people in the worldand (a, b) ∈ R, where a and b are people, if "a and b have a common friend" ?this is not transitive ....right...
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0 votes
1 answer
7550
ISRO 2007- ECE Z plane
The region of the z plane for which |z-a|/|z+a| = 1 ($Re(a)$ ≠ 0) is: a) x-axis b) y axis c) The straight line z = lal d) None of the above
The region of the z plane for which |z-a|/|z+a| = 1 ($Re(a)$ ≠ 0) is:a) x-axisb) y axisc) The straight line z = lald) None of the above
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