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Most viewed questions in Discrete Mathematics
0
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5191
#Testbook 3 Qno.-26
#plz check i think 2nd property hold in reverse way??
Hradesh patel
asked
in
Set Theory & Algebra
Jan 27, 2017
by
Hradesh patel
259
views
test-series
1
vote
1
answer
5192
Discrete maths
https://gateoverflow.in/?qa=blob&qa_blobid=15165260876214054240
Ravi_1511
asked
in
Graph Theory
Nov 2, 2016
by
Ravi_1511
259
views
minimum-spanning-tree
0
votes
0
answers
5193
Translate to sentential form. (V(x) {Pink(x) ^ Building(x) -> Wonderful(x) } )
(V(x) {Pink(x) ^ Building(x) -> Wonderful(x) } ) => Intuitively it seems like , (I) If building is pink then it is wonderful , but other form given is => (II) All pink buildings are wonderful. ... ) {Pink(x) ^ Building(x) -> Wonderful(x) } ) without any quantifier ? Or both are valid transalations here ?
vishal8492
asked
in
Mathematical Logic
Sep 25, 2016
by
vishal8492
259
views
0
votes
1
answer
5194
GATE Overflow | Mathematics | Test 1 | Question: 5
Let $X = \{2,3,6,12,24\}$ and $£$ be the partial order defined by $X £ Y$ if $x$ divides $y$. Number of edges in the Hasse diagram of $(X,£)$ is? 3 4 9 None of the above
Bikram
asked
in
Set Theory & Algebra
Aug 8, 2016
by
Bikram
259
views
go-mathematics-1
partial-order
0
votes
0
answers
5195
Maths
Can anyone please suggest any single resource which has a comprehensive list of Trigonometric Identities which might be useful to solve sums ?? (Inverses, Half angles, Double Angles, Sum rule, Product Rule etc.).
Sunnidhya Roy
asked
in
Mathematical Logic
Dec 20, 2022
by
Sunnidhya Roy
258
views
trigonometry
engineering-mathematics
discrete-mathematics
1
vote
0
answers
5196
DRDO CSE 2022 Paper 1 | Question: 11
Consider the following graph. Find closeness centrality of $\text{‘A’}$ node.
admin
asked
in
Graph Theory
Dec 15, 2022
by
admin
258
views
drdocse-2022-paper1
graph-theory
graph-connectivity
5-marks
descriptive
0
votes
0
answers
5197
Kenneth Rosen Edition 7 Exercise 1.7 Question 34 (Page No. 91)
Is this reasoning for finding the solutions of the equation $\sqrt{2x^2−1=x}$ correct? $\sqrt{2x^2−1=x}$ is given; $2x^2−1=x^2$, obtained by squaring both sides of (1); $x^2−1=0$, obtained by subtracting $x^2$ ... left-hand side of$x^2−1$; $x=1$ or $x=−1$,which follows because $ab=0$ implies that $a=0$ or $b=0$
Pooja Khatri
asked
in
Mathematical Logic
Apr 4, 2019
by
Pooja Khatri
258
views
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
0
votes
1
answer
5198
Made easy
It says "false as truth value". Means contradiction ???
abhishekmehta4u
asked
in
Mathematical Logic
Sep 30, 2018
by
abhishekmehta4u
258
views
0
votes
1
answer
5199
ISI-2014-18
Let $D_1 = det \begin{pmatrix}a & b & c\\x &y & z\\p& q & r\end{pmatrix}$ and $D_2 = det \begin{pmatrix}-x & a & -p\\y &-b & q\\z & -c & r\end{pmatrix}$ Then $D_1 = D_2$ $D_1 = 2D_2$ $D_1 = -D_2$ $D_2 = 2D_1$
jjayantamahata
asked
in
Mathematical Logic
Mar 17, 2018
by
jjayantamahata
258
views
matrix
0
votes
2
answers
5200
Discreet maths set
Set of Natural number contain 0 or no ?
Nitesh Choudhary
asked
in
Mathematical Logic
Dec 10, 2017
by
Nitesh Choudhary
258
views
discrete-mathematics
set-theory&algebra
0
votes
0
answers
5201
Self Doubt
Can someone explain the 3rd line of proof. a^i = a^i operation a^(j-i) ?
Jatin18
asked
in
Set Theory & Algebra
Dec 4, 2017
by
Jatin18
258
views
discrete-mathematics
0
votes
0
answers
5202
prepositional logic : For all is not perfect is equal to someone is not perfect or someone is perfect .
hem chandra joshi
asked
in
Mathematical Logic
Nov 21, 2017
by
hem chandra joshi
258
views
propositional-logic
0
votes
0
answers
5203
The number of terms independent of x in the binomial expansion of
The number of terms independent of x in the binomial expansion of (A) 0 (B) 1 (C) 2 (D) 5
.
asked
in
Combinatory
Mar 26, 2017
by
.
258
views
combinatory
0
votes
0
answers
5204
set theory
Vicky rix
asked
in
Set Theory & Algebra
Mar 13, 2017
by
Vicky rix
258
views
discrete-mathematics
set-theory
set-theory&algebra
engineering-mathematics
1
vote
1
answer
5205
Graph Theory (Chromatic no)
Ashwani Kumar 2
asked
in
Graph Theory
Feb 6, 2017
by
Ashwani Kumar 2
258
views
1
vote
0
answers
5206
Recursive relation
What does this problem tells and how it is related to Fibonacci series? Couldn't understand the question
Prajwal Bhat
asked
in
Combinatory
Jan 29, 2017
by
Prajwal Bhat
258
views
recurrence-relation
0
votes
0
answers
5207
How this statement is true
How this is true ? $_{r}^{\frac{n(n-1)}{2}}\textrm{C} = 2^{\frac{n(n-1))}{2}}$
PEKKA
asked
in
Graph Theory
Jan 2, 2017
by
PEKKA
258
views
engineering-mathematics
1
vote
0
answers
5208
Need of Concept Clarity
I want to understand Validity Check in First order logic. Also I want to have technique or specific way of how to approach or answer GATE question on this topic? Please give Pure explanation. Detailed Answer. It would be great help for GATE aspirants like me. Thanks in Advance.
parthbkgadoya
asked
in
Mathematical Logic
Oct 19, 2016
by
parthbkgadoya
258
views
mathematical-logic
discrete-mathematics
first-order-logic
0
votes
0
answers
5209
Kenneth Rosen Edition 7 Exercise 6.1 Question 54 (Page No. 398)
How many different initials can someone have if a person has at least two, but no more than five, different initials? Assume that each initial is one of the $26$ uppercase letters of the English language.
admin
asked
in
Combinatory
Apr 28, 2020
by
admin
257
views
kenneth-rosen
discrete-mathematics
counting
descriptive
0
votes
0
answers
5210
Combinatorics-Self doubt
How many outcomes are possible when 10 coins are tossed? $X_{h} + X_{t}$ =10 where $X_{h}$ denotes the number of heads and it is $\geq$0 and $X_{t}$ denotes the number of tails which is also $\geq$ ... Shouldn't the answer to the above problem be $2^{10}$ considering each coin can have 2 outcomes either heads or tails? Which one is correct?
Ayush Upadhyaya
asked
in
Combinatory
Jun 22, 2018
by
Ayush Upadhyaya
257
views
discrete-mathematics
combinatory
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