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Hot questions in Engineering Mathematics
1
votes
1
answer
2941
ISI2018-MMA-10
A new flag of ISI club is to be designed with $5$ vertical strips using some or all of the four colors: green, maroon, red and yellow. In how many ways this can be done so that no two adjacent strips have the same color? $120$ $324$ $424$ $576$
A new flag of ISI club is to be designed with $5$ vertical strips using some or all of the four colors: green, maroon, red and yellow. In how many ways this can be done s...
akash.dinkar12
1.5k
views
akash.dinkar12
asked
May 11, 2019
Combinatory
isi2018-mma
engineering-mathematics
discrete-mathematics
combinatory
+
–
0
votes
1
answer
2942
Probability - Gravner-69.b
$f(x) = \begin{Bmatrix} cx & if (0<x<4) \\ 0 & otherwise \end{Bmatrix}$ (b) Compute $P(1\leqslant X\leqslant 2)$
$f(x) = \begin{Bmatrix} cx & if (0<x<4) \\ 0 & otherwise \end{Bmatrix}$(b) Compute $P(1\leqslant X\leqslant 2)$
Pooja Khatri
304
views
Pooja Khatri
asked
Sep 26, 2018
Probability
probability
gravner
engineering-mathematics
random-variable
+
–
2
votes
2
answers
2943
Logically Equivalent justify your answer
1. (∀x (p(x) → q(x)) and (∀x p(x) → ∀x q(x)) 2.∃x p(x)∧∃x q(x) and ∃x (p(x)∧q(x)) 3.(∀x (p(x) ↔ q(x)) and (∀x p(x) ↔ ∀x q(x)) are logically equivalent or not justify the answer
1. (∀x (p(x) → q(x)) and (∀x p(x) → ∀x q(x))2.∃x p(x)∧∃x q(x) and ∃x (p(x)∧q(x))3.(∀x (p(x) ↔ q(x)) and (∀x p(x) ↔ ∀x q(x))are logically eq...
One
9.9k
views
One
asked
May 12, 2016
Mathematical Logic
mathematical-logic
+
–
8
votes
1
answer
2944
Kenneth Rosen Edition 7 Exercise 1.1 Question 6 (Page No. 13)
Suppose that SmartphoneA has 256 MB RAM and 32 GB ROM, and the resolution of its camera is 8 MP; Smartphone B has 288 MB RAM and 64 GB ROM, and the resolution of its camera is 4 MP; and Smartphone C has 128 MB ... resolution camera. Smartphone A has more RAM than Smartphone B if and only if Smartphone B has more RAM than Smartphone A.
Suppose that SmartphoneA has 256 MB RAM and 32 GB ROM, and the resolution of its camera is 8 MP; Smartphone B has 288 MB RAM and 64 GB ROM, and the resolution of its came...
go_editor
13.1k
views
go_editor
asked
Apr 13, 2016
Mathematical Logic
mathematical-logic
kenneth-rosen
discrete-mathematics
+
–
0
votes
1
answer
2945
Probability - Gravner-69.b
$f(x) = \begin{Bmatrix} cx & if (0<x<4) \\ 0 & otherwise \end{Bmatrix}$ (c) Determine EX and Var(X).
$f(x) = \begin{Bmatrix} cx & if (0<x<4) \\ 0 & otherwise \end{Bmatrix}$(c) Determine EX and Var(X).
Pooja Khatri
320
views
Pooja Khatri
asked
Sep 26, 2018
Probability
probability
gravner
engineering-mathematics
random-variable
+
–
0
votes
2
answers
2946
ISI2018-MMA-18
Let $A_1 = (0, 0), A_2 = (1, 0), A_3 = (1, 1)\ $and$\ A_4 = (0, 1)$ be the four vertices of a square. A particle starts from the point $A_1$ at time $0$ and moves either to $A_2$ or to $A_4$ with equal probability. Similarly, in each of the subsequent ... $T$ be the minimum number of steps required to cover all four vertices. The probability $P(T = 4)$ is $0$ $1/16$ $1/8$ $1/4$
Let $A_1 = (0, 0), A_2 = (1, 0), A_3 = (1, 1)\ $and$\ A_4 = (0, 1)$ be the four vertices of a square. A particle starts from the point $A_1$ at time $0$ and moves either ...
akash.dinkar12
1.0k
views
akash.dinkar12
asked
May 11, 2019
Probability
isi2018-mma
engineering-mathematics
probability
+
–
0
votes
1
answer
2947
Probability - Gravner-69.a
$f(x) = \begin{Bmatrix} cx & if (0<x<4) \\ 0 & otherwise \end{Bmatrix}$ (a) Determine $c$.
$f(x) = \begin{Bmatrix} cx & if (0<x<4) \\ 0 & otherwise \end{Bmatrix}$(a) Determine $c$.
Pooja Khatri
225
views
Pooja Khatri
asked
Sep 26, 2018
Probability
gravner
probability
engineering-mathematics
random-variable
+
–
0
votes
1
answer
2948
ISI2018-MMA-14
Let $A$ be a $3× 3$ real matrix with all diagonal entries equal to $0$. If $1 + i$ is an eigenvalue of $A$, the determinant of $A$ equals $-4$ $-2$ $2$ $4$
Let $A$ be a $3× 3$ real matrix with all diagonal entries equal to $0$. If $1 + i$ is an eigenvalue of $A$, the determinant of $A$ equals$-4$$-2$$2$$4$
akash.dinkar12
1.6k
views
akash.dinkar12
asked
May 11, 2019
Linear Algebra
isi2018-mma
engineering-mathematics
linear-algebra
eigen-value
determinant
+
–
3
votes
1
answer
2949
Cases when LU decomposition is possible.
I had already visited below link but was unable to grasp it. https://math.stackexchange.com/questions/218770/when-does-a-square-matrix-have-an-lu-decomposition. I made some form of self-analysis, let me know if I am in the correct ... pivot, and if such cannot be fixed without a row shuffle operation, then LU decomposition is not possible. Am I correct?
I had already visited below link but was unable to grasp it.https://math.stackexchange.com/questions/218770/when-does-a-square-matrix-have-an-lu-decomposition.I made some...
Ayush Upadhyaya
3.8k
views
Ayush Upadhyaya
asked
Nov 18, 2018
Linear Algebra
linear-algebra
matrix
+
–
0
votes
1
answer
2950
Kenneth Rosen Edition 7 Exercise 2.2 Question 14 (Page No. 136)
Find the sets $A$ and $B$ if $A-B=\left \{ 1,5,7,8 \right \}, B-A=\left \{ 2,10 \right \},$ and $A \cap B=\left \{ 3,6,9 \right \}.$
Find the sets $A$ and $B$ if $A-B=\left \{ 1,5,7,8 \right \}, B-A=\left \{ 2,10 \right \},$ and $A \cap B=\left \{ 3,6,9 \right \}.$
Pooja Khatri
225
views
Pooja Khatri
asked
Apr 6, 2019
Set Theory & Algebra
kenneth-rosen
discrete-mathematics
set-theory&algebra
+
–
1
votes
2
answers
2951
ISI2019-MMA-15
The rank of the matrix $\begin{bmatrix} 0 &1 &t \\ 2& t & -1\\ 2& 2 & 0 \end{bmatrix}$ equals $3$ for any real number $t$ $2$ for any real number $t$ $2$ or $3$ depending on the value of $t$ $1,2$ or $3$ depending on the value of $t$
The rank of the matrix $\begin{bmatrix} 0 &1 &t \\ 2& t & -1\\ 2& 2 & 0 \end{bmatrix}$ equals $3$ for any real number $t$$2$ for any real number $t$$2$ or $3$ depending o...
Sayan Bose
1.3k
views
Sayan Bose
asked
May 6, 2019
Linear Algebra
isi2019-mma
linear-algebra
engineering-mathematics
matrix
+
–
0
votes
1
answer
2952
recurrence relation
Which recurrence relation satisfy the sequence: 2, 3, 4, . . ., for n ≥ 1. A ) T(N) = 2 T(N-1) - T(N-2) B)T(N) = T(N-1) + T(N-2) C)T(N) = N+1 D) None of these
Which recurrence relation satisfy the sequence: 2, 3, 4, . . ., for n ≥ 1.A ) T(N) = 2 T(N-1) - T(N-2) B)T(N) = T(N-1) + T(N-2)C)T(N) = N+1D)None of these
Jaspreet Kaur Bains
2.1k
views
Jaspreet Kaur Bains
asked
Dec 19, 2017
Mathematical Logic
recurrence-relation
+
–
2
votes
1
answer
2953
Sheldon Ross, Chapter# 4 RANDOM VARIABLES, Q.51 (9th edition page#167)
If a student copies his assignments from his friend he would get 80 marks. If he had done the assignments independently he would have scored 50 marks out of 100 and if the teacher finds he is cheating he ... , what is the probability that he will lose more marks with copying than by doing his independent work independently?
If a student copies his assignments from his friend he would get 80 marks. If he had done the assignments independently he would have scored 50 marks out of 100 and if th...
Asim Siddiqui 4
1.1k
views
Asim Siddiqui 4
asked
May 28, 2019
Probability
probability
sheldon-ross
random-variable
+
–
2
votes
1
answer
2954
REGARDING DISCRETE MATHS SYLLABUS
FIELD AND RING ARE IN SYLLABUS???
FIELD AND RING ARE IN SYLLABUS???
eyeamgj
805
views
eyeamgj
asked
Sep 28, 2018
0
votes
3
answers
2955
Grewal
Suppose avg waiting time of a process to get chance in a queue is 5 min. What will the probability that process get chance at first minute is ________________
Suppose avg waiting time of a process to get chance in a queue is 5 min. What will the probability that process get chance at first minute is ________________
srestha
1.6k
views
srestha
asked
Feb 19, 2019
Probability
probability
+
–
0
votes
0
answers
2956
KPGCET-CSE-2019-25
The concatenation of three or more matrices is Associative and also commutative Associative but not commutative Commutative but not associative Neither associative nor commutative
The concatenation of three or more matrices isAssociative and also commutativeAssociative but not commutative Commutative but not associativeNeither associative nor commu...
gatecse
217
views
gatecse
asked
Aug 4, 2019
Linear Algebra
kpgcet-cse-2019
engineering-mathematics
linear-algebra
+
–
22
votes
5
answers
2957
TIFR CSE 2013 | Part A | Question: 9
There are $n$ kingdoms and $2n$ champions. Each kingdom gets $2$ champions. The number of ways in which this can be done is: $\frac{\left ( 2n \right )!}{2^{n}}$ $\frac{\left ( 2n \right )!}{n!}$ $\frac{\left ( 2n \right )!}{2^{n} . n!}$ $\frac{n!}{2}$ None of the above
There are $n$ kingdoms and $2n$ champions. Each kingdom gets $2$ champions. The number of ways in which this can be done is:$\frac{\left ( 2n \right )!}{2^{n}}$$\frac{\le...
makhdoom ghaya
3.2k
views
makhdoom ghaya
asked
Nov 4, 2015
Combinatory
tifr2013
combinatory
discrete-mathematics
normal
balls-in-bins
+
–
1
votes
3
answers
2958
Proposition Logic-Rosen(7e)
Show that these statements are inconsistent: “If Miranda does not take a course in discrete mathematics, then she will not graduate.” “If Miranda does not graduate, then she is not qualified for the job.” “If Miranda reads this book, then she is qualified for the job.” “Miranda does not take a course in discrete mathematics but she reads this book.” how to approach?
Show that these statements are inconsistent: “If Miranda does not take a course in discrete mathematics, then she will not graduate.” “If Miranda does not graduate,...
aditi19
2.6k
views
aditi19
asked
Mar 26, 2019
Mathematical Logic
mathematical-logic
discrete-mathematics
kenneth-rosen
propositional-logic
+
–
3
votes
1
answer
2959
Mathematical Logic Ques:Self doubt
“Not every satisfiable logic is valid” Representation of it will be $1)\sim \left ( \forall S(x)\rightarrow V(x) \right )$ or $2)\sim \left ( \forall S(x)\vee V(x) \right )$ Among $1)$ and $2)$, which one is correct? and why?
“Not every satisfiable logic is valid” Representation of it will be $1)\sim \left ( \forall S(x)\rightarrow V(x) \right )$or$2)\sim \left ( \forall S(x)\vee V(x) \rig...
srestha
953
views
srestha
asked
Jun 4, 2019
Mathematical Logic
discrete-mathematics
mathematical-logic
+
–
3
votes
2
answers
2960
TIFR2010-Maths-A-1
A cyclic group of order 60 has 12 Generators 15 Generators 16 Generators 20 Generators
A cyclic group of order 60 has12 Generators15 Generators16 Generators20 Generators
makhdoom ghaya
4.4k
views
makhdoom ghaya
asked
Oct 11, 2015
Set Theory & Algebra
tifrmaths2010
group-theory
+
–
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