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Hot questions in Engineering Mathematics
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3601
Kenneth Rosen Edition 7 Exercise 2.1 Question 30 (Page No. 126)
Suppose that $A \times B = \phi$, where $A$ and $B$ are sets. What can you conclude?
Suppose that $A \times B = \phi$, where $A$ and $B$ are sets. What can you conclude?
Pooja Khatri
124
views
Pooja Khatri
asked
Apr 5, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
0
votes
0
answers
3602
gate 2019
Y is distributed uniformly in [1,6] 3x^2+6xY+3Y+6=0 P(Y) for 2 real roots ?
Y is distributed uniformly in [1,6]3x^2+6xY+3Y+6=0P(Y) for 2 real roots ?
jatin khachane 1
1.1k
views
jatin khachane 1
asked
Feb 4, 2019
0
votes
0
answers
3603
Kenneth Rosen Edition 7 Exercise 2.1 Question 15 (Page No. 126)
Use a Venn diagram to illustrate the relationships $A \subset B$ and $B \subset C.$
Use a Venn diagram to illustrate the relationships $A \subset B$ and $B \subset C.$
Pooja Khatri
153
views
Pooja Khatri
asked
Apr 5, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
0
votes
0
answers
3604
Kenneth Rosen Edition 7 Exercise 1.5 Question 1 (Page No. 64)
Translate these statements into English, Where the domain for each variable consists of all real numbers. $\forall x \exists y(x<y) $ $ \forall x \forall y((x>=0) \wedge (y>=0) \rightarrow (xy>=0)) $ $\forall x \forall y \exists z (xy=z)$
Translate these statements into English, Where the domain for each variable consists of all real numbers.$\forall x \exists y(x<y) $$ \forall x \forall y((x>=0) \wedge (y...
Pooja Khatri
614
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
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–
1
votes
1
answer
3605
Kenneth Rosen Edition 7 Exercise 1.7 Question 1 (Page No. 91)
Use a direct proof to show that the sum of two odd integers is even.
Use a direct proof to show that the sum of two odd integers is even.
Pooja Khatri
389
views
Pooja Khatri
asked
Mar 20, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
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–
0
votes
0
answers
3606
Kenneth Rosen Edition 7 Exercise 1.5 Question 4 (Page No. 64)
Let $P(x, y)$ be the statement Student $x$ has taken classy, where the domain for $x$ consists of all students in your class and for $y$ ... $\forall y \exists x P(x,y)$ $\forall x \forall y P(x,y)$
Let $P(x, y)$ be the statement “Student $x$ has taken classy,” where the domain for $x$ consists of all students in your class and for $y$ consists of all computer sc...
Pooja Khatri
342
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
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–
0
votes
0
answers
3607
#KennethRosen#DiscreteMaths
R is iff $R ^{-1}$ is Total ? a function ? a surjection ? an injection ? a bijection ? Fill in the entries in the table.
R isiff $R ^{-1}$ isTotal?a function?a surjection?an injection?a bijection?Fill in the entries in the table.
Sumiran Agrawal
262
views
Sumiran Agrawal
asked
Mar 30, 2019
Set Theory & Algebra
relations
kenneth-rosen
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–
0
votes
0
answers
3608
Subject Topic- Mathematical Logic
Manoj Kumar Pandey
244
views
Manoj Kumar Pandey
asked
Mar 25, 2019
Mathematical Logic
quantifiers
discrete-mathematics
mathematical-logic
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0
votes
0
answers
3609
Kenneth Rosen Edition 7 Exercise 1.5 Question 12 (Page No. 65)
Let $I(x)$ be the statement $x$ has an Internet connection and $C(x, y)$ be the statement $x$ and $y$ have chatted over the Internet, where the domain for the variables $x$ and $y$ consists of all ... the same person in your class. There are two students in the class who between them have chatted with everyone else in the class.
Let $I(x)$ be the statement “$x$ has an Internet connection”and $C(x, y)$ be the statement “$x$ and $y$ have chatted over the Internet,” where the domain for the ...
Pooja Khatri
501
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3610
Kenneth Rosen Edition 7 Exercise 1.4 Question 32 (Page No. 55)
Express each of these statements using quantifiers. Then form the negation of the statement so that no negation is to the left of quantifier. Next, express the negation in simple English. (Do not simply use the phrase It is not ... add. Every koala can climb. No monkey can speak French. There exists a pig that can swim and catch fish.
Express each of these statements using quantifiers. Then form the negation of the statement so that no negation is to the left of quantifier. Next, express the negation i...
Pooja Khatri
545
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
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–
1
votes
2
answers
3611
Zeal Test Series 2019: Set Theory & Algebra - Relations
The Number of Relations, Which are both Reflexive and Symmetric but not Anti-Symmetric, on a set with 6 elements, are ____________? i got 32768 plz check
The Number of Relations, Which are both Reflexive and Symmetric but not Anti-Symmetric, on aset with 6 elements, are ____________?i got 32768 plz check
Prince Sindhiya
650
views
Prince Sindhiya
asked
Jan 2, 2019
Set Theory & Algebra
zeal
discrete-mathematics
set-theory&algebra
relations
zeal2019
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0
votes
0
answers
3612
Kenneth Rosen Edition 7 Exercise 1.5 Question 16 (Page No. 66)
A discrete mathematics class contains 1 mathematics ma-jor who is a freshman, 12 mathematics majors who are sophomores, 15 computer science majors who are sophomores, 2 mathematics majors who are juniors, 2 computer science majors who are ... is a major such that there is a student in the class in every year of study with that major
A discrete mathematics class contains 1 mathematics ma-jor who is a freshman, 12 mathematics majors who are sophomores, 15 computer science majors who are sophomores, 2 m...
Pooja Khatri
457
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3613
GEEKS 4 GEEKS - gate cs mock 2018
An orthogonal matrix A has eigen values 1, 2 and 4. What is the trace of the matrix ? 7/4 1/7 7 4/7 Answer given : 7/4 My answer : 7 trace of a matrix is the sum of its diagonal elements.So on transposing the matrix the diagonal elements will ... is also equal to sum of eigen values.So trace of A = 7 So trace of transpose(A) should be 7. Is my reasoning right?
An orthogonal matrix A has eigen values 1, 2 and 4. What is the trace of the matrix ?7/41/774/7Answer given : 7/4My answer : 7trace of a matrix is the sum of its diagonal...
vk_9_1_9
1.2k
views
vk_9_1_9
asked
Jan 3, 2019
Linear Algebra
matrix
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–
2
votes
0
answers
3614
Kenneth Rosen Edition 7 Exercise 1.4 Question 51 (Page No. 56)
Show that $\exists x P(x) \wedge \exists x Q(x)$ and $\exists x (P(x) \wedge Q(x))$ are not logically equivalent.
Show that $\exists x P(x) \wedge \exists x Q(x)$ and $\exists x (P(x) \wedge Q(x))$ are not logically equivalent.
Pooja Khatri
254
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
1
votes
1
answer
3615
Kenneth Rosen Edition 7 Exercise 1.7 Question 5 (Page No. 91)
Prove that if $m+n$ and $n+p$ are even integers, where $m, n$,and $p$ are integers, then $m+p$ is even. What kind of proof did you use?
Prove that if $m+n$ and $n+p$ are even integers, where $m, n$,and $p$ are integers, then $m+p$ is even. What kind of proof did you use?
Pooja Khatri
243
views
Pooja Khatri
asked
Mar 20, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3616
Kenneth Rosen Edition 7 Exercise 1.4 Question 26 (Page No. 54)
Translate each of these statements into logical expression in three different ways by varying the domain and by using predicates with one and with two variables. Someone in your school has visited Uzbekistan. Everyone in your class ... person in your school who is not happy. Everyone in your school was born in the twentieth century.
Translate each of these statements into logical expression in three different ways by varying the domain and by using predicates with one and with two variables.Someone i...
Pooja Khatri
692
views
Pooja Khatri
asked
Mar 16, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3617
Kenneth Rosen Edition 7 Exercise 1.4 Question 33 (Page No. 55)
Express the negation of these propositions using quantifiers, and then express the negation in English. Some drivers do not obey the speed limit. All Swedish movies are serious. No one can keep a secret. There is someone in this class who does not have a good attitude.
Express the negation of these propositions using quantifiers, and then express the negation in English.Some drivers do not obey the speed limit.All Swedish movies are ser...
Pooja Khatri
653
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3618
Kenneth Rosen Edition 7 Exercise 1.5 Question 18 (Page No. 66)
Express each of these system specifications using predicates, quantifiers, and logical connectives, if necessary. At least one console must be accessible during every fault condition. The e-mail address of every user can be ... knows the password of every user on the system except for the system administrator, who knows all passwords.
Express each of these system specifications using predicates, quantifiers, and logical connectives, if necessary.At least one console must be accessible during every faul...
Pooja Khatri
406
views
Pooja Khatri
asked
Mar 18, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
0
answers
3619
Kenneth Rosen Edition 7 Exercise 1.5 Question 37 (Page No. 68)
Express each of these statements using quantifiers. Then form the negation of the statement so that no negation is to the left of a quantifier. Next, express the negation in simple English. (Do not simply use the phrase It is not ... a movie with Kevin Bacon or has been in a movie with someone who has been in a movie with Kevin Bacon
Express each of these statements using quantifiers. Then form the negation of the statement so that no negation is to the left of a quantifier. Next, express the negation...
Pooja Khatri
431
views
Pooja Khatri
asked
Mar 19, 2019
Mathematical Logic
kenneth-rosen
discrete-mathematics
mathematical-logic
propositional-logic
+
–
0
votes
1
answer
3620
CUT VERTEX
plz solve this problem..
plz solve this problem..
Vikas123
1.4k
views
Vikas123
asked
Jan 9, 2019
Mathematical Logic
discrete-mathematics
graph-theory
+
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