Login
Register
Dark Mode
Brightness
Profile
Edit Profile
Messages
My favorites
My Updates
Logout
Filter
Recent
Hot!
Most votes
Most answers
Most views
Previous GATE
Featured
Previous GATE Questions in Discrete Mathematics
23
votes
9
answers
91
GATE CSE 1987 | Question: 10e
Show that the conclusion $(r \to q)$ follows from the premises$:p, (p \to q) \vee (p \wedge (r \to q))$
Show that the conclusion $(r \to q)$ follows from the premises$:p, (p \to q) \vee (p \wedge (r \to q))$
makhdoom ghaya
5.2k
views
makhdoom ghaya
asked
Nov 14, 2016
Mathematical Logic
gate1987
mathematical-logic
propositional-logic
proof
descriptive
+
–
36
votes
8
answers
92
GATE CSE 1987 | Question: 10b
What is the generating function $G(z)$ for the sequence of Fibonacci numbers?
What is the generating function $G(z)$ for the sequence of Fibonacci numbers?
makhdoom ghaya
9.9k
views
makhdoom ghaya
asked
Nov 14, 2016
Combinatory
gate1987
combinatory
generating-functions
descriptive
+
–
3
votes
1
answer
93
GATE CSE 1987 | Question: 9f
Give the composition tables (Cayley Tables) of the two non-isomorphic groups of order $4$ with elements $e, a, b, c$ where $c$ is the identity element. Use the order $e, a, b, c$ for the rows and columns.
Give the composition tables (Cayley Tables) of the two non-isomorphic groups of order $4$ with elements $e, a, b, c$ where $c$ is the identity element. Use the order $e, ...
makhdoom ghaya
913
views
makhdoom ghaya
asked
Nov 14, 2016
Set Theory & Algebra
gate1987
set-theory&algebra
group-theory
group-isomorphism
descriptive
out-of-gate-syllabus
+
–
25
votes
2
answers
94
GATE CSE 1987 | Question: 9e
How many true inclusion relations are there of the form $A \subseteq B$, where $A$ and $B$ are subsets of a set $S$ with $n$ elements?
How many true inclusion relations are there of the form $A \subseteq B$, where $A$ and $B$ are subsets of a set $S$ with $n$ elements?
makhdoom ghaya
3.2k
views
makhdoom ghaya
asked
Nov 14, 2016
Set Theory & Algebra
gate1987
set-theory&algebra
relations
descriptive
+
–
11
votes
1
answer
95
GATE CSE 1987 | Question: 9d
Specify an adjacency-lists representation of the undirected graph given above.
Specify an adjacency-lists representation of the undirected graph given above.
makhdoom ghaya
1.6k
views
makhdoom ghaya
asked
Nov 14, 2016
Graph Theory
gate1987
graph-theory
easy
graph-connectivity
descriptive
+
–
15
votes
3
answers
96
GATE CSE 1987 | Question: 9c
Show that the number of odd-degree vertices in a finite graph is even.
Show that the number of odd-degree vertices in a finite graph is even.
makhdoom ghaya
1.8k
views
makhdoom ghaya
asked
Nov 14, 2016
Graph Theory
gate1987
graph-theory
degree-of-graph
descriptive
proof
+
–
23
votes
3
answers
97
GATE CSE 1987 | Question: 9b
How many one-to-one functions are there from a set $A$ with $n$ elements onto itself?
How many one-to-one functions are there from a set $A$ with $n$ elements onto itself?
makhdoom ghaya
4.3k
views
makhdoom ghaya
asked
Nov 14, 2016
Set Theory & Algebra
gate1987
set-theory&algebra
functions
descriptive
+
–
24
votes
4
answers
98
GATE CSE 1987 | Question: 9a
How many binary relations are there on a set $A$ with $n$ elements?
How many binary relations are there on a set $A$ with $n$ elements?
makhdoom ghaya
5.9k
views
makhdoom ghaya
asked
Nov 14, 2016
Set Theory & Algebra
gate1987
set-theory&algebra
relations
descriptive
+
–
2
votes
2
answers
99
GATE CSE 1987 | Question: 2f
State whether the following statements are TRUE or FALSE: Every infinite cyclic group is isomorphic to the infinite cyclic group of integers under addition.
State whether the following statements are TRUE or FALSE:Every infinite cyclic group is isomorphic to the infinite cyclic group of integers under addition.
makhdoom ghaya
928
views
makhdoom ghaya
asked
Nov 9, 2016
Graph Theory
gate1987
graph-theory
graph-isomorphism
true-false
out-of-gate-syllabus
+
–
4
votes
1
answer
100
GATE CSE 1987 | Question: 2e
State whether the following statement is TRUE or FALSE: There is a linear-time algorithm for testing the planarity of finite graphs.
State whether the following statement is TRUE or FALSE:There is a linear-time algorithm for testing the planarity of finite graphs.
makhdoom ghaya
1.4k
views
makhdoom ghaya
asked
Nov 9, 2016
Graph Theory
gate1987
graph-theory
graph-planarity
true-false
+
–
22
votes
4
answers
101
GATE CSE 1987 | Question: 2d
State whether the following statements are TRUE or FALSE: The union of two equivalence relations is also an equivalence relation.
State whether the following statements are TRUE or FALSE:The union of two equivalence relations is also an equivalence relation.
makhdoom ghaya
5.5k
views
makhdoom ghaya
asked
Nov 9, 2016
Set Theory & Algebra
gate1987
set-theory&algebra
relations
true-false
+
–
26
votes
3
answers
102
GATE CSE 1992 | Question: 14b
Consider the set of integers $\{1,2,3,4,6,8,12,24\}$ together with the two binary operations LCM (lowest common multiple) and GCD (greatest common divisor). Which of the following algebraic structures does this represent? group ring field lattice
Consider the set of integers $\{1,2,3,4,6,8,12,24\}$ together with the two binary operations LCM (lowest common multiple) and GCD (greatest common divisor). Which of the ...
go_editor
4.6k
views
go_editor
asked
Apr 24, 2016
Set Theory & Algebra
gate1992
set-theory&algebra
partial-order
lattice
normal
+
–
7
votes
2
answers
103
GATE CSE 1992 | Question: 15.b
Let $S$ be the set of all integers and let $n > 1$ be a fixed integer. Define for $a,b \in S, a R b$ iff $a-b$ is a multiple of $n$. Show that $R$ is an equivalence relation and find its equivalence classes for $n = 5$.
Let $S$ be the set of all integers and let $n 1$ be a fixed integer. Define for $a,b \in S, a R b$ iff $a-b$ is a multiple of $n$. Show that $R$ is an equivalence relat...
go_editor
3.4k
views
go_editor
asked
Apr 24, 2016
Set Theory & Algebra
gate1992
set-theory&algebra
normal
relations
descriptive
+
–
43
votes
8
answers
104
GATE CSE 2006 | Question: 73
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The number of connected components in $G$ is: $n$ $n + 2$ $2^{\frac{n}{2}}$ $\frac{2^{n}}{n}$
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding set...
go_editor
8.7k
views
go_editor
asked
Apr 24, 2016
Graph Theory
gatecse-2006
graph-theory
normal
graph-connectivity
+
–
89
votes
6
answers
105
GATE CSE 2006 | Question: 72
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets intersect in exactly two elements. The maximum degree of a vertex in $G$ is: $\binom{\frac{n}{2}}{2}.2^{\frac{n}{2}}$ $2^{n-2}$ $2^{n-3}\times 3$ $2^{n-1}$
The $2^n$ vertices of a graph $G$ corresponds to all subsets of a set of size $n$, for $n \geq 6$. Two vertices of $G$ are adjacent if and only if the corresponding sets...
go_editor
17.8k
views
go_editor
asked
Apr 24, 2016
Graph Theory
gatecse-2006
graph-theory
normal
degree-of-graph
+
–
36
votes
5
answers
106
GATE CSE 2007 | Question: 85
Suppose that a robot is placed on the Cartesian plane. At each step it is allowed to move either one unit up or one unit right, i.e., if it is at $(i,j)$ then it can move to either $(i + 1, j)$ or $(i,j + 1)$. Suppose that the robot is not allowed to traverse the ... $^{20}\mathrm{C}_{10} - ^{8}\mathrm{C}_{4}\times ^{11}\mathrm{C}_{5}$
Suppose that a robot is placed on the Cartesian plane. At each step it is allowed to move either one unit up or one unit right, i.e., if it is at $(i,j)$ then it can move...
go_editor
9.5k
views
go_editor
asked
Apr 23, 2016
Combinatory
gatecse-2007
combinatory
normal
discrete-mathematics
+
–
92
votes
9
answers
107
GATE CSE 2016 Set 1 | Question: 28
A function $f: \Bbb{N^+} \rightarrow \Bbb{N^+}$ , defined on the set of positive integers $\Bbb{N^+}$, satisfies the following properties: $f(n)=f(n/2)$ if $n$ is even $f(n)=f(n+5)$ if $n$ is odd Let $R=\{ i \mid \exists{j} : f(j)=i \}$ be the set of distinct values that $f$ takes. The maximum possible size of $R$ is ___________.
A function $f: \Bbb{N^+} \rightarrow \Bbb{N^+}$ , defined on the set of positive integers $\Bbb{N^+}$, satisfies the following properties: $f(n)=f(n/2)...
Sandeep Singh
21.6k
views
Sandeep Singh
asked
Feb 12, 2016
Set Theory & Algebra
gatecse-2016-set1
set-theory&algebra
functions
normal
numerical-answers
+
–
67
votes
10
answers
108
GATE CSE 2016 Set 1 | Question: 27
Consider the recurrence relation $a_1 =8 , a_n =6n^2 +2n+a_{n-1}$. Let $a_{99}=K\times 10^4$. The value of $K$ is __________.
Consider the recurrence relation $a_1 =8 , a_n =6n^2 +2n+a_{n-1}$. Let $a_{99}=K\times 10^4$. The value of $K$ is __________.
Sandeep Singh
29.3k
views
Sandeep Singh
asked
Feb 12, 2016
Combinatory
gatecse-2016-set1
combinatory
recurrence-relation
normal
numerical-answers
+
–
57
votes
17
answers
109
GATE CSE 2016 Set 1 | Question: 26
The coefficient of $x^{12}$ in $\left(x^{3}+x^{4}+x^{5}+x^{6}+\dots \right)^{3}$ is ___________.
The coefficient of $x^{12}$ in $\left(x^{3}+x^{4}+x^{5}+x^{6}+\dots \right)^{3}$ is ___________.
Sandeep Singh
25.9k
views
Sandeep Singh
asked
Feb 12, 2016
Combinatory
gatecse-2016-set1
combinatory
generating-functions
normal
numerical-answers
+
–
74
votes
8
answers
110
GATE CSE 2016 Set 1 | Question: 1
Let $p, q, r, s$ represents the following propositions. $p:x\in\left\{8, 9, 10, 11, 12\right\}$ $q:$ $x$ is a composite number. $r:$ $x$ is a perfect square. $s:$ $x$ is a prime number. The integer $x\geq2$ which satisfies $\neg\left(\left(p\Rightarrow q\right) \wedge \left(\neg r \vee \neg s\right)\right)$ is ____________.
Let $p, q, r, s$ represents the following propositions.$p:x\in\left\{8, 9, 10, 11, 12\right\}$$q:$ $x$ is a composite number.$r:$ $x$ is a perfect square.$s:$ $x$ is a pr...
Sandeep Singh
13.0k
views
Sandeep Singh
asked
Feb 12, 2016
Mathematical Logic
gatecse-2016-set1
mathematical-logic
normal
numerical-answers
propositional-logic
+
–
Page:
« prev
1
2
3
4
5
6
7
8
9
10
...
19
next »
Email or Username
Show
Hide
Password
I forgot my password
Remember
Log in
Register