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Recent questions in Engineering Mathematics
1
vote
1
answer
7421
ISRO Mech 2016: Mathematics
There are 20 locks and 20 matching keys. Maximum number of trials required to match all the locks is (a) 190 (b) 210 (c) 400 (d) 40
sh!va
asked
in
Mathematical Logic
Jul 30, 2016
by
sh!va
2.8k
views
engineering-mathematics
3
votes
3
answers
7422
UGC NET CSE | Junet 2015 | Part 2 | Question: 5
Consider a Hamiltonian Graph(G) with no loops and parallel edges. Which of the following is true with respect to this graph (G)? $\deg (v) \geq n/2$ for each vertex of $G$ $\mid E(G) \mid \geq 1/2 (n-1)(n-2)+2$ edges $\deg(v) + \deg(w) \geq n$ ... $v$ and $\omega$ not connected by an edge $i$ and $ii$ $ii$ and $iii$ $i$ and $iii$ $i$, $ii$, and $iii$
go_editor
asked
in
Graph Theory
Jul 30, 2016
by
go_editor
4.4k
views
ugcnetcse-june2015-paper2
discrete-mathematics
graph-theory
3
votes
3
answers
7423
UGC NET CSE | Junet 2015 | Part 2 | Question: 3
In how many ways can $15$ indistinguishable fish be placed into $5$ different ponds, so that each pond contains at least one fish? $1001$ $3876$ $775$ $200$
go_editor
asked
in
Combinatory
Jul 30, 2016
by
go_editor
4.6k
views
ugcnetcse-june2015-paper2
combinatory
counting
1
vote
2
answers
7424
UGC NET CSE | Junet 2015 | Part 2 | Question: 2
Considering an experiment of tossing two fair dice, one black and one red. What is the probability that the number on the black die divides the number on red die? $\dfrac{22}{36} \\$ $\dfrac{12}{36} \\$ $\dfrac{14}{36} \\$ $\dfrac{6}{36}$
go_editor
asked
in
Probability
Jul 30, 2016
by
go_editor
3.5k
views
ugcnetcse-june2015-paper2
probability
5
votes
2
answers
7425
UGC NET CSE | Junet 2015 | Part 2 | Question: 1
How many strings of $5$ digits have the property that the sum of their digits is $7$? $66$ $330$ $495$ $99$
go_editor
asked
in
Combinatory
Jul 30, 2016
by
go_editor
2.8k
views
ugcnetcse-june2015-paper2
discrete-mathematics
counting
2
votes
1
answer
7426
Combination
The Solution of the recurrence relation An-2An-1=2n where A0=1 ?
Vijay Dulam
asked
in
Combinatory
Jul 29, 2016
by
Vijay Dulam
2.5k
views
recurrence-relation
3
votes
2
answers
7427
UGC NET CSE | December 2013 | Part 3 | Question: 39
A ____ complete subgraph and a _____ subset of vertices of a graph G=(V,E) are a clique and a vertex cover respectively minimal, maximal minimal, minimal maximal, minimal maximal, maximal
go_editor
asked
in
Graph Theory
Jul 28, 2016
by
go_editor
2.4k
views
ugcnetcse-dec2013-paper3
engineering-mathematics
discrete-mathematics
graph-theory
3
votes
1
answer
7428
UGC NET CSE | December 2013 | Part 3 | Question: 24
The objective of ____ procedure is to discover at least one ____ that causes two literals to match. unification, validation unification, substituion substitution, unification minimax, maximum
go_editor
asked
in
Discrete Mathematics
Jul 27, 2016
by
go_editor
3.4k
views
ugcnetcse-dec2013-paper3
discrete-mathematics
mathematical-logic
1
vote
1
answer
7429
Set Concept
Why it is that if we can list the element of set in a sequence then it is countable? I mean how it can be a necessary and sufficient condition for a set to be Countable.Because we can provide sequence no to any set.Cann't we?And how can an infinity set be countable, as it is already infinity?
Sarvottam Patel
asked
in
Set Theory & Algebra
Jul 27, 2016
by
Sarvottam Patel
529
views
set-theory
countable-uncountable-set
1
vote
4
answers
7430
UGC NET CSE | December 2013 | Part 2 | Question: 39
A graph is non-planar if and only if it contains a subgraph homomorphic to $K_{3,2} \text{ or } K_5$ $K_{3,3} \text{ or } K_6$ $K_{3,3} \text{ or } K_5$ $K_{2,3} \text{ or } K_5$
go_editor
asked
in
Graph Theory
Jul 26, 2016
by
go_editor
3.9k
views
ugcnetcse-dec2013-paper2
graph-theory
non-planar
1
vote
1
answer
7431
UGC NET CSE | December 2013 | Part 2 | Question: 38
If n and r are non-negative integers and n $\geq$ r, then p(n+1, r) equals to $\frac{P(n,r)(n+1)}{(n+1-r)}$ $\frac{P(n,r)(n+1)}{(n-1+r)}$ $\frac{P(n,r)(n-1)}{(n+1-r)}$ $\frac{P(n,r)(n+1)}{(n+1+r)}$
go_editor
asked
in
Combinatory
Jul 26, 2016
by
go_editor
1.4k
views
ugcnetcse-dec2013-paper2
discrete-mathematics
combinatory
2
votes
2
answers
7432
UGC NET CSE | December 2013 | Part 2 | Question: 37
Let f and g be the functions from the set of integers defined by $f(x) = 2x+3$ and $g(x) =3x+2$. Then the composition of f and g and g and f is given as 6x+7, 6x+11 6x+11, 6x+7 5x+5, 5x+5 None of the above
go_editor
asked
in
Set Theory & Algebra
Jul 26, 2016
by
go_editor
6.7k
views
ugcnetcse-dec2013-paper2
algebra
function-composition
1
vote
1
answer
7433
UGC NET CSE | December 2013 | Part 2 | Question: 34
Let P(m,n) be the statement "m divides n" where the universe of discourse for both the variable is the set of positive integers. Determine the truth values of each of the following propositions: $\forall m \forall n P(m, n)$ ... Both I and II are true Both I and II are false I-false & II-true I-true& II-false
go_editor
asked
in
Mathematical Logic
Jul 26, 2016
by
go_editor
1.2k
views
ugcnetcse-dec2013-paper2
discrete-mathematics
propositional-logic
1
vote
0
answers
7434
Narsingh Deo Graph Theory
We are given four cubes.The six faces of every cube are variously colored blue, green, red or white. Is it possible to stack the cubes one on top of another to form a column such that no color appears twice on any of the four sides ... says the total possibilities of this arrangement is 41472= 3*24*24*24. Can anybody explain how to calculate the number of possibilities?
debanjan sarkar
asked
in
Graph Theory
Jul 25, 2016
by
debanjan sarkar
1.2k
views
graph-theory
1
vote
0
answers
7435
Coefficient Calculation on Fourier Series?! Please happy me :) ?
Example of one Question for preparing exam: Fourier series of function: be like as: $ f(x)=\frac{a_0}{2}+\Sigma_{n=1}^{\infty} (a_n \cos nx+b_n \sin nx) $ (Question ) so the coefficient is: $a_n=0,n=2k+1,b_n=0,n=2k$ I want to find ... I think my solution is wrong, anyone could help me? I so sad...
asambeladi
asked
in
Calculus
Jul 25, 2016
by
asambeladi
758
views
engineering-mathematics
calculus
integration
linear-algebra
limits
1
vote
2
answers
7436
Mathematical logic
Let p, q, and r be the propositions p : Grizzly bears have been seen in the area. q : Hiking is safe on the trail. r : Berries are ripe along the trail. Write these propositions using p, q, and r and logical connectives (including negations). ... it is necessary but not sufficient that berries not be ripe along the trail and for grizzly bears not to have been seen in the area.
sourav.
asked
in
Mathematical Logic
Jul 24, 2016
by
sourav.
1.2k
views
propositional-logic
discrete-mathematics
engineering-mathematics
1
vote
0
answers
7437
permutation and combination
The number of natural numbers of two or more than two digits in which digits from left to right are in increasing order is ??? plz explain clearly
eddy
asked
in
Combinatory
Jul 24, 2016
by
eddy
703
views
2
votes
1
answer
7438
permutation and combination
A dice is rolled 6 times ,one ,two,three,four,five,and six appears on consecutive throws of dice ,how many ways are possible of having one before six?? plz explain clearly
eddy
asked
in
Combinatory
Jul 24, 2016
by
eddy
1.1k
views
1
vote
1
answer
7439
permutation and combination
In how may ways can 'mn' things be distributed equally among n groups ??? plz explain clearly
eddy
asked
in
Combinatory
Jul 24, 2016
by
eddy
680
views
6
votes
3
answers
7440
IIT Kanpur Written Test
There are 16072016 users in Facebook. A graph is formed where an edge(u,v) is defined when a male is friend to a female and vice versa. Estimate the number of simple cycle of length 1607 formed in the graph?
sh!va
asked
in
Graph Theory
Jul 20, 2016
by
sh!va
635
views
graph-theory
graph-connectivity
iit-kanpur
numerical-answers
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