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Recent questions in Engineering Mathematics
0
votes
0
answers
1
Dearangements in permutations and combinations
How many derangements of {1, 2, 3, 4, 5, 6, 7} begin with the integers 1, 2, & 3 in some order
Aj1202
asked
in
Mathematical Logic
6 hours
ago
by
Aj1202
7
views
mathematical-logic
0
votes
0
answers
2
GATE EE 2007
The linear operation L(x) is defined by the cross product L(x) = b x X, where b=[0 1 0] and X=[xxx]' are three dimensional vectors. The 3 x 3 matrix M of this operation satisfies: L(x)=M (x1 x2 x3)' Then the eigen values of M are: (a) 0, +1,-1 (b) 1, -1, 1 (c) i, -i, 0 (d) i, -i, 1 [EE, GATE-2007, 2 marks]
Priyanshu Karmakar
asked
in
Linear Algebra
10 hours
ago
by
Priyanshu Karmakar
12
views
linear-algebra
eigen-value
0
votes
1
answer
3
What is the probability that a five-card poker hand contains the two of diamonds, the three of spades, the six of hearts, the ten of clubs, and the king of hearts?
nobibx
asked
in
Probability
3 days
ago
by
nobibx
28
views
probability
0
votes
0
answers
4
discrete mathematics
The maximum number of edges possible in a graph G with 9 vertices which is 3 colourable is equal to A 24 B 27 C 36 D None of the above
someshawasthi
asked
in
Graph Theory
3 days
ago
by
someshawasthi
57
views
graph-theory
0
votes
0
answers
5
kenneth rosen, counting, exercise: 6.5, question: 50
How many ways are there to distribute five distinguishable objects into three indistinguishable boxes?
Roshakaw
asked
in
Combinatory
Mar 24
by
Roshakaw
26
views
discrete-mathematics
kenneth-rosen
0
votes
0
answers
6
Kenneth Rosen, exercise: 6.2, question: 8
Show that if f is a function from S to T , where S and T are finite sets with |S| > |T |, then there are elements s1 and s2 in S such that f (s1) = f (s2), or in other words, f is not one-to-one. How can I prove it by using “proof by contradiction”? Is it possible to prove the same by using “proof by contraposition”? If yes, how?
Roshakaw
asked
in
Combinatory
Mar 23
by
Roshakaw
17
views
discrete-mathematics
kenneth-rosen
pigeonhole-principle
4
votes
2
answers
7
GO Classes Weekly Quiz 4 | Propositional Logic | Question: 4
If $\mathbf{p}$ is true, $\mathbf{q}$ is true, and $\mathbf{r}$ is true, find the truth value of the statement. $ (p \wedge q) \leftrightarrow(q \vee \sim r) $ Choose the correct answer below. True because $(p \wedge q)$ ... and $(q \vee \sim r)$ is false. False because $(p \wedge q)$ is true and $(q \vee \sim r)$ is true.
GO Classes
asked
in
Mathematical Logic
Mar 22
by
GO Classes
252
views
goclasses2024_wq4
goclasses
mathematical-logic
propositional-logic
1-mark
2
votes
2
answers
8
GO Classes Weekly Quiz 4 | Propositional Logic | Question: 5
If $p$ is true and $q$ is false then the truth values of $(p \rightarrow q) \leftrightarrow(\sim q \rightarrow \sim p)$ and $(\sim p \vee \sim q) \wedge(\sim q \vee p)$ are respectively True, True True, False False, False False, True
GO Classes
asked
in
Mathematical Logic
Mar 22
by
GO Classes
160
views
goclasses2024_wq4
goclasses
mathematical-logic
propositional-logic
1-mark
2
votes
2
answers
9
GO Classes Weekly Quiz 4 | Propositional Logic | Question: 6
If $(p \wedge \sim q) \wedge(p \wedge r) \rightarrow \sim p \vee q$ is false, then the truth values of $p, q$ and $r$ are, respectively : $F, T, F$ $T, F, T$ $T, T, T$ $F, F, F$
GO Classes
asked
in
Mathematical Logic
Mar 22
by
GO Classes
133
views
goclasses2024_wq4
goclasses
mathematical-logic
propositional-logic
1-mark
2
votes
3
answers
10
GO Classes Weekly Quiz 4 | Propositional Logic | Question: 7
If $p, q, r$ are simple statement with truth values $T, F, T$ respectively then the truth value of $((\sim p \vee q) \wedge r) \rightarrow p$ is : True False True if $r$ is false True if $q$ is true
GO Classes
asked
in
Mathematical Logic
Mar 22
by
GO Classes
172
views
goclasses2024_wq4
goclasses
mathematical-logic
propositional-logic
1-mark
6
votes
4
answers
11
GO Classes Weekly Quiz 4 | Propositional Logic | Question: 8
A very special island, "Smullyan's island", is inhabited only by knights and knaves. Knights always tell the truth, and knaves always lie. You encounter two people, $\text{A}$ and $\text{B. A}$ says " ... , respectively, if they address you in the above way described: Knight, Knight Knight, Knave Knave, Knight Knave, Knave
GO Classes
asked
in
Mathematical Logic
Mar 22
by
GO Classes
244
views
goclasses2024_wq4
goclasses
mathematical-logic
propositional-logic
2-marks
0
votes
1
answer
12
#Eigen Vectors
Find the eigen values and eigen vector of the following matrix????
Çșȇ ʛấẗẻ
asked
in
Mathematical Logic
Mar 21
by
Çșȇ ʛấẗẻ
54
views
eigen-value
linear-algebra
engineering-mathematics
matrix
0
votes
1
answer
13
self doubt
how to write if and only if symbolic form explain in detail????
Çșȇ ʛấẗẻ
asked
in
Mathematical Logic
Mar 20
by
Çșȇ ʛấẗẻ
32
views
self-doubt
discrete-mathematics
matematical
mathematical-logic
0
votes
2
answers
14
Can any one solve this , 6B and 4G ,at least 2 girls should be together in circular arrangement
Shivank121
asked
in
Combinatory
Mar 19
by
Shivank121
55
views
discrete-mathematics
combinatory
0
votes
1
answer
15
explain universal quantifiers and existential quantifiers with example what is De morgan's law for quantifiers
gund pragati sunil
asked
in
Mathematical Logic
Mar 11
by
gund pragati sunil
63
views
mathematical-logic
0
votes
1
answer
16
explain with example, notations used and mathematical expressions to describe the following terms .i)membership ii) subset iii) equality of two sets iv) union
gund pragati sunil
asked
in
Mathematical Logic
Mar 11
by
gund pragati sunil
48
views
mathematical-logic
set-theory
1
vote
1
answer
17
canvas
The weight of a light bulb has an average of 12.5 grs. with a standard deviation of 2. Assume the variable is normally distributed. If an inspector select randomly a sample of 30 bulbs ¿what is the probability of the weight of one bulb falls between 10 and 15 grs.?
Ernestogld
asked
in
Probability
Mar 10
by
Ernestogld
96
views
probability
normal-distribution
0
votes
0
answers
18
Numerical Method Analysis : Help...
Use LU Decomposition method to solve the following system. $\left\{\begin{matrix} & x_{1} +x_{2}-x_{3} =1 \\ & x_{1} +2x_{2}-2x_{3} =0 \\ & -2x_{1} +x_{2}+x_{3} =1 \end{matrix}\right.$ ...
kidussss
asked
in
Linear Algebra
Mar 8
by
kidussss
45
views
numerical-methods
algorithms
discrete-mathematics
linear-algebra
engineering-mathematics
0
votes
0
answers
19
Numerical Method Analysis : Help...
Solve the following system using Gauss elimination with partial pivoting. $\left\{\begin{matrix} &2x_{1}+x_{2}+x_{3}=10\\ & 3x_{1}+2x_{2}+3x_{3}=18 \\ & 5x_{1}+4x_{2}+2x_{3}=9 \end{matrix}\right.$ ...
kidussss
asked
in
Linear Algebra
Mar 8
by
kidussss
31
views
numerical-methods
algorithms
linear-algebra
engineering-mathematics
discrete-mathematics
0
votes
0
answers
20
Numerical Method Analysis : Help...
Use Secant method to find roots of: $x^3-2x^2+3x-5=0$ $x+1 = 4sinx$ $e^x = x + 2$
kidussss
asked
in
Linear Algebra
Mar 8
by
kidussss
30
views
numerical-methods
algorithms
discrete-mathematics
linear-algebra
engineering-mathematics
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