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Recent questions in Engineering Mathematics
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Previous GATE
0
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1
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1
Rank of a matrix
Let A be a 4×3 real matrix with rank 2. Let B be transpose matrix of A. Which one of the following statement is TRUE? (a) Rank of BA is less than 2. (b) Rank of BA is equal to 2. (c) Rank of BA is greater than 2. (d) Rank of BA can be any number between 1 and 3.
asked
15 hours
ago
in
Mathematical Logic
by
bts
(
99
points)

13
views
rankofmatrix
engineeringmathematics
matrix
0
votes
0
answers
2
Inverse of a matrix
Q.29 A isnt square matrix. How is its inverse possible?
asked
17 hours
ago
in
Calculus
by
bts
(
99
points)

19
views
matrices
0
votes
0
answers
3
UGCNETNov2017III70
Consider a Takagi  Sugeno  Kang (TSK) Model consisting of rules of the form : If x1 is Ai1 and ... and xr is Air THEN y =fi (x1, x2, ..., xr) = bi0+bi1 x1+.....+birxr assume, $\alpha$i is the matching degree of rule i, then the total output of the model is given by : (1) y ... 1}^{L}$ fi (x1,x2,....., xr)/$\sum_{i=1}^{L}\alpha$i (4) y = maxi [$\alpha$i fi (x1,x2,....., xr)]
asked
1 day
ago
in
Mathematical Logic
by
Roma_nagpal
(
79
points)

11
views
0
votes
0
answers
4
This question is from graph theory
What is the total number of vertices in a tree if there are 3n vertices of degree 2 and 2n vertices of degree n?
asked
2 days
ago
in
Mathematical Logic
by
Pratyush
(
7
points)

24
views
0
votes
0
answers
5
Infinite Descending Chain
From Wiki : Given a set S with a partial order ≤, an infinite descending chain is an infinite, strictly decreasing sequence of elements x1 > x2 > ... > xn > ... As an example, in the set of integers, the chain −1, ... used in number theory, while the latter is preferred in set theory and computer science. Now while solving question which definition to use ?
asked
2 days
ago
in
Set Theory & Algebra
by
Na462
Active
(
3.3k
points)

6
views
discretemathematics
0
votes
0
answers
6
self doubt
number of integers in the set {0,1,2,3......,10000}which contain digit 5 exactly once ???? i got the 9*9*9*9 is it right???
asked
2 days
ago
in
Combinatory
by
vijju532
(
61
points)

23
views
discretemathematics
0
votes
0
answers
7
Kenneth rosen
How many nonisomorphic directed graphs are there with $n$ vertices when $n$ is $2$ $3$ $4$
asked
3 days
ago
in
Graph Theory
by
swati96
(
37
points)

14
views
engineeringmathematics
discretemathematics
kennethrosen
graphtheory
0
votes
0
answers
8
Kenneth rosen
How many nonisomorphic graphs are there with six vertices and four edges?
asked
3 days
ago
in
Graph Theory
by
swati96
(
37
points)

5
views
engineeringmathematics
discretemathematics
graphtheory
0
votes
0
answers
9
Graphs, kenneth rosen
How many nonisomorphic simple graphs are there with five vertices and three edges?
asked
3 days
ago
in
Graph Theory
by
swati96
(
37
points)

5
views
engineeringmathematics
discretemathematics
kennethrosen
graphtheory
0
votes
0
answers
10
Graphs, kenneth rosen
How many nonisomorphic simple graphs are there with five vertices and three edges?
[closed]
asked
3 days
ago
in
Graph Theory
by
swati96
(
37
points)

5
views
engineeringmathematics
discretemathematics
graphtheory
0
votes
1
answer
11
spanning tree
How we get maximum no. of spanning tree for give $n$ node is $n^{(n2)}$
asked
3 days
ago
in
Graph Theory
by
piya
(
91
points)

16
views
engineeringmathematics
discretemathematics
graphtheory
0
votes
2
answers
12
self doubt
What is the English of both statement ∀x((x!=0)→∃y(xy=100)) ∀x∃y((x!=0)→(xy=100))
asked
5 days
ago
in
Mathematical Logic
by
Vegeta
(
21
points)

31
views
0
votes
0
answers
13
General
From last few days I am trying to solve Sheldon Ross problems. But not able to solve it. So those who have solved it kindly tell me how to strengthen the concepts as to solve the problems...........and also is the level of problems given in it are as per GATE requirement??
asked
6 days
ago
in
Probability
by
mbisht
(
161
points)

7
views
0
votes
1
answer
14
self doubt
dog(x) = x is a dog Int (x) = x is intelligent write in logic form No dogs are intelligent.
asked
Jun 14
in
Mathematical Logic
by
Vegeta
(
21
points)

27
views
propositionallogic
firstorderlogic
logicalreasoning
0
votes
2
answers
15
IIT M video questions
P(x,y,z), xy=z, Universe is interger; write in logic form If xy=x for all y, then x =0. Thank you
asked
Jun 14
in
Mathematical Logic
by
Vegeta
(
21
points)

50
views
propositionallogic
firstorderlogic
logicalreasoning
0
votes
0
answers
16
generating funtion
1/1−2x2 provide close formula for the sequences it determines
asked
Jun 14
in
Mathematical Logic
by
sunil sarode
Active
(
1.1k
points)

12
views
generatingfunctions
kennethrosen
discretemathematics
+1
vote
0
answers
17
find close form of generating function discrete mathematics kenneth rosen
asked
Jun 14
in
Mathematical Logic
by
sunil sarode
Active
(
1.1k
points)

31
views
kennethrosen
discretemathematics
counting
0
votes
0
answers
18
Sheldon Ross Chapter 2
If it is assumed that all (52 5) poker hands are equally likely, what is the probability of being dealt (a) a ﬂush? (A hand is said to be a ﬂush if all 5 cards are of the same suit.) (b) one pair? (This occurs when the cards have denominations a, a, ... distinct.) (c) two pairs? (This occurs when the cards have denominations a, a, b, b, c, wherea, b, andc are all distinct.)
asked
Jun 13
in
Probability
by
mbisht
(
161
points)

4
views
0
votes
0
answers
19
Abstract algebra question
What is the maximal order of an element in S7? The symbol Sn will stand for the set of all permutations of the symbols {1,2,···,n}, which is a group under composition.
asked
Jun 13
in
Set Theory & Algebra
by
Forrest Gump
(
47
points)

10
views
settheory&algebra
algebra
+1
vote
0
answers
20
Engineering Maths: Orthogonal Matrix
Is the given last point correct? But as i see in the given matrix sum of the product of first two columns (or) two rows is not zero. please verify.
asked
Jun 13
in
Linear Algebra
by
pbhati
(
35
points)

9
views
linearalgebra
engineeringmathematics
0
votes
0
answers
21
discrete maths
P: Good mobile phones are not cheap Q: Cheap mobile phones are not good L: P implies Q M: Q implies P N: P is equivalent to Q Which one of the following about L, M, and N is CORRECT? (A) Only L is TRUE. (B) Only M is TRUE. (C) Only N is TRUE. (D) L, M and N are TRUE
[closed]
asked
Jun 13
in
Mathematical Logic
by
Preety singhal
(
15
points)

17
views
0
votes
0
answers
22
Sheldon Ross Chapter 2
If it is assumed that all (525) poker hands are equally likely, what is the probability of being dealt (a) a ﬂush? (A hand is said to be a ﬂush if all 5 cards are of the same suit.) (b) one pair? (This occurs when the cards have denominations a, a, b ... distinct.) (c) two pairs? (This occurs when the cards have denominations a, a, b, b, c, wherea, b, andc are all distinct.)
asked
Jun 13
in
Probability
by
mbisht
(
161
points)

5
views
0
votes
0
answers
23
LogicKenneth Rosen (Ex1.411f)
Let S(x) be the predicate that "x is a student", F(x) be the predicate "x is a faculty member", and A(x,y) the predicate "x has asked y a question", where the domain consists of all people associated with your school. ... A(x,y) ) ) Doubt 2: What is the difference between my answer and rosen's answer.Which one is correct. Please help.
[closed]
asked
Jun 12
in
Mathematical Logic
by
Ayush Upadhyaya
Loyal
(
8.8k
points)

36
views
discretemathematics
propositionallogic
0
votes
0
answers
24
ISI 2014 MMA 9
asked
Jun 12
in
Mathematical Logic
by
Sammohan Ganguly
(
417
points)

18
views
userisi2014
usermod
engineeringmathematics
0
votes
0
answers
25
ISI 2014 MMA  3
asked
Jun 12
in
Mathematical Logic
by
Sammohan Ganguly
(
417
points)

22
views
userisi2014
usermod
engineeringmathematics
0
votes
0
answers
26
ISI 2014 MMA  5
asked
Jun 12
in
Calculus
by
Sammohan Ganguly
(
417
points)

50
views
userisi2014
usermod
calculus
engineeringmathematics
0
votes
1
answer
27
ISI 2014 MMA 7
asked
Jun 12
in
Calculus
by
Sammohan Ganguly
(
417
points)

49
views
userisi2014
usermod
calculus
engineeringmathematics
0
votes
1
answer
28
ACE booklet
Please solv
asked
Jun 12
in
Set Theory & Algebra
by
Pradeep A
(
37
points)

38
views
0
votes
0
answers
29
ACE booklet
Please solve this
asked
Jun 12
in
Set Theory & Algebra
by
Pradeep A
(
37
points)

55
views
0
votes
0
answers
30
self doubt on previous year question
https://gateoverflow.in/8281/gate2015134 what is the exact probablity ? nd is question is saying to have a tuple in which atleast there should be one element who has only one complement to satisfy the given property?
asked
Jun 11
in
Set Theory & Algebra
by
eyeamgj
Active
(
2.3k
points)

14
views
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