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Recent questions in Engineering Mathematics
1
votes
1
answer
91
GATE CSE 2024 | Set 1 | Question: 17
Let $A$ and $B$ be two events in a probability space with $P(A)=0.3, P(B)=0.5$, and $P(A \cap B)=0.1$. Which of the following statements is/are TRUE? The two events $A$ and $B$ are independent $P(A \cup B)=0.7$ ... $B$ $P\left(A^c \cap B^c\right)=0.4$, where $A^c$ and $B^c$ are the complements of the events $A$ and $B$, respectively
Let $A$ and $B$ be two events in a probability space with $P(A)=0.3, P(B)=0.5$, and $P(A \cap B)=0.1$. Which of the following statements is/are TRUE?The two events $A$ an...
Arjun
2.0k
views
Arjun
asked
Feb 16
Probability
gatecse2024-set1
multiple-selects
probability
+
–
0
votes
1
answer
92
GATE CSE 2024 | Set 1 | Question: 22
Let $A$ and $B$ be non-empty finite sets such that there exist one-to-one and onto functions $\text{(i)}$ from $A$ to $B$ and $\text{(ii)}$ from $A \times A$ to $A \cup B$. The number of possible values of $\text{|A|}$ is ___________.
Let $A$ and $B$ be non-empty finite sets such that there exist one-to-one and onto functions $\text{(i)}$ from $A$ to $B$ and $\text{(ii)}$ from $A \times A$ to $A \cup B...
Arjun
1.8k
views
Arjun
asked
Feb 16
Set Theory & Algebra
gatecse2024-set1
numerical-answers
set-theory&algebra
+
–
12
votes
3
answers
93
GATE CSE 2024 | Set 1 | Question: 39
Let $A$ be any $n \times m$ matrix, where $m>n$. Which of the following statements is/are TRUE about the system of linear equations $Ax=0$? There exist at least $m-n$ linearly independent solutions to this system There exist $m-n$ ... solution in which at least $m-n$ variables are $0$ There exists a solution in which at least $n$ variables are non-zero
Let $A$ be any $n \times m$ matrix, where $m>n$. Which of the following statements is/are TRUE about the system of linear equations $Ax=0$?There exist at least $m-n...
Arjun
3.3k
views
Arjun
asked
Feb 16
Linear Algebra
gatecse2024-set1
multiple-selects
linear-algebra
+
–
0
votes
1
answer
94
GATE CSE 2024 | Set 1 | Question: 41
The chromatic number of a graph is the minimum number of colours used in a proper colouring of the graph. Let $G$ be any graph with $n$ vertices and chromatic number $k$. Which of the following statements is/are always TRUE? $G$ contains a complete subgraph with ... $n/k$ $G$ contains at least $k(k-1) / 2$ edges $G$ contains a vertex of degree at least $k$
The chromatic number of a graph is the minimum number of colours used in a proper colouring of the graph. Let $G$ be any graph with $n$ vertices and chromatic nu...
Arjun
2.1k
views
Arjun
asked
Feb 16
Graph Theory
gatecse2024-set1
multiple-selects
graph-theory
+
–
3
votes
2
answers
95
GATE CSE 2024 | Set 1 | Question: 42
Consider the operators $\diamond$ and $\square$ defined by $a \diamond b=a+2 b, a \square b=a b$, for positive integers. Which of the following statements is/are TRUE? Operator $\diamond$ ... $\square$ obeys the distributive law Operator $\square$ over the operator $\diamond$ obeys the distributive law
Consider the operators $\diamond$ and $\square$ defined by $a \diamond b=a+2 b, a \square b=a b$, for positive integers. Which of the following statements is/are TRUE?Ope...
Arjun
1.8k
views
Arjun
asked
Feb 16
Set Theory & Algebra
gatecse2024-set1
multiple-selects
set-theory&algebra
+
–
2
votes
2
answers
96
GATE CSE 2024 | Set 1 | Question: 53
A bag contains $10$ red balls and $15$ blue balls. Two balls are drawn randomly without replacement. Given that the first ball drawn is red, the probability (rounded off to $3$ decimal places) that both balls drawn are red is ___________.
A bag contains $10$ red balls and $15$ blue balls. Two balls are drawn randomly without replacement. Given that the first ball drawn is red, the probability (rounded off ...
Arjun
2.2k
views
Arjun
asked
Feb 16
Probability
gatecse2024-set1
numerical-answers
probability
+
–
0
votes
0
answers
97
Regular expression to finite automata
Çșȇ ʛấẗẻ
222
views
Çșȇ ʛấẗẻ
asked
Feb 15
Mathematical Logic
finite-automata
theory-of-computation
regular-expression
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–
0
votes
0
answers
98
COA Self doubt
Çșȇ ʛấẗẻ
98
views
Çșȇ ʛấẗẻ
asked
Feb 15
Mathematical Logic
co-and-architecture
self-doubt
+
–
0
votes
1
answer
99
Permutation and combination
Çșȇ ʛấẗẻ
141
views
Çșȇ ʛấẗẻ
asked
Feb 15
Mathematical Logic
combinatory
engineering-mathematics
discrete-mathematics
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–
1
votes
0
answers
100
Gate 2016
The minimum number of colours that is sufficient to vertex-colour any planar graph is ________. I am confused with the question's language. please correct me if I have a wrong assumption. We need to tell the minimum colors required for a planar graph. Suppose I start ... is only fixed to 4. I understand the answer not to be less than 4. What does the word "any" means here?
The minimum number of colours that is sufficient to vertex-colour any planar graph is ________.I am confused with the question's language.please correct me if I have a wr...
TusharRana
209
views
TusharRana
asked
Feb 8
0
votes
0
answers
101
Combinatorics & Probability
A rumor is spread randomly among a group of 10 people by successively having one person call someone, who calls someone, and so on. A person can pass the rumor on to anyone except the individual who just called. (a) By how many different paths can a rumor ... in $N$ calls? (c) What is the probability that if $A$ starts the rumor, then $A$ receives the third calls?
A rumor is spread randomly among a group of 10 people by successively having one person call someone, who calls someone, and so on. A person can pass the rumor on to anyo...
Debargha Mitra Roy
174
views
Debargha Mitra Roy
asked
Feb 8
Combinatory
combinatory
counting
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–
0
votes
0
answers
102
#self doubt
Can someone please verify it ? isn't should be 8. https://www.toppr.com/ask/question/the-cardinality-of-the-power-set-of-left-phi-left-phiright-left-phi-left/ Let S={ϕ,{ϕ},{ϕ,{ϕ}}} P(s)= Power Set of set S P(s)={ϕ,{ϕ},{ϕ,{ϕ}},{ϕ,{ϕ,{ϕ}}},{{ϕ},{ϕ,{ϕ}}},{ϕ,{ϕ},{ϕ,{ϕ}}}} n(P(s))=6.
Can someone please verify it ? isn't should be 8. https://www.toppr.com/ask/question/the-cardinality-of-the-power-set-of-left-phi-left-phiright-left-phi-left/Let S={ϕ,{�...
Dknights
134
views
Dknights
asked
Feb 6
Set Theory & Algebra
discrete-mathematics
+
–
13
votes
1
answer
103
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 15
Let $\mathrm{G}$ be a simple undirected graph on 8 vertices such that there is a vertex of degree 1 , a vertex of degree 2 , a vertex of degree 3 , a vertex of degree 4, a vertex of degree 5 , a vertex of degree 6 and ... of degree 7. Which of the following can be the degree of the last vertex? (Select all that are possible) 0 3 4 8
Let $\mathrm{G}$ be a simple undirected graph on 8 vertices such that there is a vertex of degree 1 , a vertex of degree 2 , a vertex of degree 3 , a vertex of degree 4, ...
GO Classes
663
views
GO Classes
asked
Feb 5
Graph Theory
goclasses2024-mockgate-14
graph-theory
degree-of-graph
multiple-selects
1-mark
+
–
2
votes
2
answers
104
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 21
Suppose we have events $A, B$ in a sample space. And we know that $\mathrm{P}(\mathrm{A})=0.3, \mathrm{P}\left(\mathrm{B} \mid \mathrm{A}^c\right)=0.25, \mathrm{P}(\mathrm{B} \mid \mathrm{A})=0.45$. What is $\mathrm{P}\left(\mathrm{A}^c \mid \mathrm{B}\right) ?$ 0.75 0.55 0.2 0.56
Suppose we have events $A, B$ in a sample space. And we know that $\mathrm{P}(\mathrm{A})=0.3, \mathrm{P}\left(\mathrm{B} \mid \mathrm{A}^c\right)=0.25, \mathrm{P}(\mathr...
GO Classes
549
views
GO Classes
asked
Feb 5
Probability
goclasses2024-mockgate-14
probability
conditional-probability
1-mark
+
–
5
votes
1
answer
105
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 22
Let $A$ be a $20 \times 11$ matrix with real entries. After performing some row operations on $A$, we get a matrix $B$ which has 12 nonzero rows. Which of the following is/are always true? The rank of $A$ is 12. The ranks of $A$ and $B$ are ... . If $v$ is a vector such that $A v=0$ then $B v$ is also 0. The rank of $B$ is at most 11.
Let $A$ be a $20 \times 11$ matrix with real entries. After performing some row operations on $A$, we get a matrix $B$ which has 12 nonzero rows. Which of the following i...
GO Classes
393
views
GO Classes
asked
Feb 5
Linear Algebra
goclasses2024-mockgate-14
linear-algebra
rank-of-matrix
multiple-selects
1-mark
+
–
4
votes
1
answer
106
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 39
For sets $A$ and $B$, let $f: A \rightarrow B$ and $g: B \rightarrow A$ be functions such that $f(g(x))=x$ for each $x \in B$. Which among the following statements is/are correct? The function $f$ must be one-to-one. The function $f$ must be onto. The function g must be one-to-one. The function $g$ must be onto.
For sets $A$ and $B$, let $f: A \rightarrow B$ and $g: B \rightarrow A$ be functions such that $f(g(x))=x$ for each $x \in B$. Which among the following statements is/are...
GO Classes
528
views
GO Classes
asked
Feb 5
Set Theory & Algebra
goclasses2024-mockgate-14
set-theory&algebra
functions
multiple-selects
2-marks
+
–
2
votes
1
answer
107
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 48
Consider the quadratic equation $x^2+\dfrac{x}{2}+c=0$, where $c$ is chosen uniformly randomly from the interval $[0,1]$. What is the probability that the given quadratic equation has a real solution? The solutions of $a x^2+b x+c=0$ are given by $x=\dfrac{-b \pm \sqrt{b^2-4 a c}}{2a}$. $1 / 2$ $1 / 4$ $1 / 8$ $1 / 16$
Consider the quadratic equation $x^2+\dfrac{x}{2}+c=0$, where $c$ is chosen uniformly randomly from the interval $[0,1]$. What is the probability that the given quadratic...
GO Classes
381
views
GO Classes
asked
Feb 5
Probability
goclasses2024-mockgate-14
probability
uniform-distribution
2-marks
+
–
7
votes
2
answers
108
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 49
Consider a $2 \times 2$ matrix M. Which of the following are NOT POSSIBLE for the system of equations $M x=p?$ no solutions for some but not all $\vec{p}$; exactly one solution for all other $\vec{p}$ exactly one solution for ... some $\vec{p}$, exactly one solution for some $\vec{p}$ and more than one solution for some $\vec{p}$
Consider a $2 \times 2$ matrix M. Which of the following are NOT POSSIBLE for the system of equations $M x=p?$no solutions for some but not all $\vec{p}$; exactly one sol...
GO Classes
565
views
GO Classes
asked
Feb 5
Linear Algebra
goclasses2024-mockgate-14
linear-algebra
system-of-equations
multiple-selects
2-marks
+
–
6
votes
2
answers
109
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 56
The coefficient of $x^6$ in the expansion of $A(x)$ is, where $ A(x)=\frac{x(1+x)}{(1-x)^3} $
The coefficient of $x^6$ in the expansion of $A(x)$ is, where$$A(x)=\frac{x(1+x)}{(1-x)^3}$$
GO Classes
571
views
GO Classes
asked
Feb 5
Combinatory
goclasses2024-mockgate-14
numerical-answers
combinatory
recurrence-relation
2-marks
+
–
6
votes
1
answer
110
GO Classes Test Series 2024 | Mock GATE | Test 14 | Question: 57
A strongly connected component $(\mathrm{SCC})$ of a directed graph $\mathrm{G}=(\mathrm{V}, \mathrm{E})$ ... ; edges in its associated directed acyclic graph $G^{\prime}$ be $A, B$ respectively, then what is $A+B?$
A strongly connected component $(\mathrm{SCC})$ of a directed graph $\mathrm{G}=(\mathrm{V}, \mathrm{E})$ is a maximal set of vertices such that any two vertices in the s...
GO Classes
563
views
GO Classes
asked
Feb 5
Graph Theory
goclasses2024-mockgate-14
numerical-answers
graph-theory
graph-connectivity
2-marks
+
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