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Recent questions tagged engineering-mathematics
1
votes
1
answer
451
NIELIT2017 STA-set-c-119
The function $f(x)=\frac{x^2 -1}{x-1}$ at $x=1$ is: Continuous and Differentiable Continuous but not Differentiable Differentiable but not Continuous Neither Continuous nor Differentiable
The function $f(x)=\frac{x^2 -1}{x-1}$ at $x=1$ is:Continuous and Differentiable Continuous but not DifferentiableDifferentiable but not ContinuousNeither Continuous nor ...
habedo007
1.4k
views
habedo007
asked
Aug 30, 2018
Calculus
nielit-july-2017
engineering-mathematics
calculus
continuity
+
–
0
votes
0
answers
452
Conditional Probability (Papoulis)
Trains X and Y arrive at a station at random between 8 A.M. and 8.20 A.M. Train X stops for four minutes and train Y stops for five minutes. Assuming that the trains arrive independently of each other. (a) Determine the ... ) Assuming that the trains met, determine the probability that train X arrived before train Y. Note: please explain in detail. Thanks
Trains X and Y arrive at a station at random between 8 A.M. and 8.20 A.M. Train X stops for four minutes and train Y stops for five minutes. Assuming that the trains arri...
Ravi Raja
2.4k
views
Ravi Raja
asked
Aug 29, 2018
Probability
probability
conditional-probability
engineering-mathematics
+
–
1
votes
0
answers
453
Combinatory
The number of ways to distribute 6 different gifts to 2 student from total 4 students are ________.
The number of ways to distribute 6 different gifts to 2 student from total 4 students are ________.
srestha
659
views
srestha
asked
Aug 28, 2018
Combinatory
combinatory
engineering-mathematics
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–
0
votes
0
answers
454
SELF DOUBT
how to solve this equation by A.G.P. method or any other method. S=1+(n)2+ (n-6)2+(n-12)2+(n-18)2+..........................................+(n-6(k-1))2.
how to solve this equation by A.G.P. method or any other method.S=1+(n)2+ (n-6)2+(n-12)2+(n-18)2+..........................................+(n-6(k-1))2.
Deepanshu
235
views
Deepanshu
asked
Aug 27, 2018
Mathematical Logic
engineering-mathematics
+
–
0
votes
2
answers
455
Engineering Maths
If A = $\begin{bmatrix} -1 & 1 & 0 \\ 0 & 2 &-2 \\ 0& 0 & 3 \end{bmatrix}$ then trace of the matrix 3A2 + adj A is ____
If A = $\begin{bmatrix} -1 & 1 & 0 \\ 0 & 2 &-2 \\ 0& 0 & 3 \end{bmatrix}$ then trace of the matrix 3A2 + adj A is ____
suparna kar
808
views
suparna kar
asked
Aug 23, 2018
Linear Algebra
engineering-mathematics
linear-algebra
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–
0
votes
2
answers
456
self doubt
What will be lower bound of {g}
What will be lower bound of {g}
Vegeta
596
views
Vegeta
asked
Aug 19, 2018
Set Theory & Algebra
lattice
discrete-mathematics
engineering-mathematics
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–
0
votes
0
answers
457
Let X be the number of times you and your friend get the same outcome. Then X is distributed as
You and your friend have a fair coin each. Both of you toss the coins simultaneously, record the outcomes, and repeat the process, for a total of $n$ times. Let $X$ ... $Geom(1/2)$ (c) $Binom(n,3/4)$ (d) $Binom(n,1/4)$
You and your friend have a fair coin each. Both of you toss the coins simultaneously, record the outcomes, and repeat the process, for a total of $n$ times. Let $X$ be th...
worst_engineer
168
views
worst_engineer
asked
Aug 11, 2018
Probability
probability
engineering-mathematics
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–
0
votes
0
answers
458
Invertible Matrix
Let $A$ be a nilpotent matrix. Show that $I + A$ is invertible.
Let $A$ be a nilpotent matrix. Show that $I + A$ is invertible.
pankaj_vir
255
views
pankaj_vir
asked
Aug 8, 2018
Linear Algebra
engineering-mathematics
linear-algebra
matrix
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–
1
votes
2
answers
459
Invertible Matrix
Let A be a $5 × 5$ invertible matrix with row sums $1$. That is $\sum_{j=1}^{5} a_{ij} = 1$ for $1 \leq i\leq 5$. Then, what is the sum of all entries of $A^{-1}$.
Let A be a $5 × 5$ invertible matrix with row sums $1$. That is $\sum_{j=1}^{5} a_{ij} = 1$ for $1 \leq i\leq 5$. Then, what is the sum of all entries of $A^{-1}$.
pankaj_vir
1.3k
views
pankaj_vir
asked
Aug 8, 2018
Linear Algebra
engineering-mathematics
linear-algebra
matrix
easy
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–
0
votes
1
answer
460
engg math book
out of 800 families with 5 children each,how many families would be expected to have 1. 3boy 2. 2girls
out of 800 families with 5 children each,how many families would be expected to have1. 3boy 2. 2girls
amit166
2.3k
views
amit166
asked
Jul 26, 2018
Probability
engineering-mathematics
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–
1
votes
0
answers
461
Engineering mathematics
Can you please tell me what are the topics in calculus that we have to prepare for computer science?
Can you please tell me what are the topics in calculus that we have to prepare for computer science?
kapilj123
136
views
kapilj123
asked
Jul 25, 2018
GATE
engineering-mathematics
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–
1
votes
1
answer
462
Finding Maxima Minima
The greatest value of the function f(x) = 2 sin x + sin 2x on the interval [ 0,3pi/2 ] is ____
The greatest value of the function f(x) = 2 sin x + sin 2x on the interval [ 0,3pi/2 ] is ____
srestha
1.1k
views
srestha
asked
Jul 19, 2018
Calculus
engineering-mathematics
maxima-minima
calculus
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–
0
votes
1
answer
463
Calculus-Self Doubt
Is the function $f(x)=\frac{1}{x^{\frac{1}{3}}}$ continous in the interval [-1 0) ?
Is the function $f(x)=\frac{1}{x^{\frac{1}{3}}}$ continous in the interval [-1 0) ?
Ayush Upadhyaya
660
views
Ayush Upadhyaya
asked
Jul 17, 2018
Calculus
engineering-mathematics
calculus
continuity
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–
1
votes
2
answers
464
Zeal Workbook: Combinatory - Permutations & Combinations
$\text{How many 5 letter word can be formed}$ $\text{from 6 a's,6 b's,6 c's,5 d's,5e's,4f's,4g's,3h's,3i's ?}$
$\text{How many 5 letter word can be formed}$$\text{from 6 a's,6 b's,6 c's,5 d's,5e's,4f's,4g's,3h's,3i's ?}$
Shivani gaikawad
495
views
Shivani gaikawad
asked
Jul 15, 2018
Combinatory
engineering-mathematics
zeal
combinatory
zeal-workbook
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–
2
votes
2
answers
465
Propositional logic
I am unable to prove following equations without using truth table 1) p -> (q v r) = (p->q) V (p->r) 2) ~(p <-> q) = p <-> ~q
I am unable to prove following equations without using truth table1) p - (q v r) = (p->q) V (p->r) 2) ~(p <- q) = p <- ~q
kd.....
512
views
kd.....
asked
Jul 12, 2018
Mathematical Logic
propositional-logic
discrete-mathematics
mathematical-logic
first-order-logic
engineering-mathematics
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–
1
votes
1
answer
466
Inversion of a matrix - CSIR question
Let A be 3x3 matrix. Suppose 1 and -1 are two of the three Eigen Values of A and 18 is one of the Eigen Values of A2+3A. Then____ a.) Both A and A2+3A are invertible. b.) A2+3A but A is not. c.) A is invertible but A2+3A is not invertible. d.) Both A and A2+3A are not invertible.
Let A be 3x3 matrix. Suppose 1 and -1 are two of the three Eigen Values of A and 18 is one of the Eigen Values of A2+3A. Then____a.) Both A and A2+3A are invertible.b.) A...
ZeroFriction
1.3k
views
ZeroFriction
asked
Jul 5, 2018
Linear Algebra
linear-algebra
matrix
engineering-mathematics
eigen-value
matrix-inversion
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–
0
votes
1
answer
467
Syllabus Gate 2019
Is the chapter Complex functions part of gate 2019 maths syllabus? Previously questions about analytic functions have been asked a lot. Are they part of the syllabus?
Is the chapter Complex functions part of gate 2019 maths syllabus?Previously questions about analytic functions have been asked a lot. Are they part of the syllabus?
bts
662
views
bts
asked
Jul 3, 2018
Mathematical Logic
preparation
gate-2019
syllabus
engineering-mathematics
complex-number
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–
0
votes
0
answers
468
How to calculate below sum series ?
radha gogia
399
views
radha gogia
asked
Jul 1, 2018
Mathematical Logic
algorithms
engineering-mathematics
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–
0
votes
0
answers
469
Differentiable
Why is a function not differentiable at x=k when f'(x) limits to infinity? Limit can be infinite too?
Why is a function not differentiable at x=k when f'(x) limits to infinity? Limit can be infinite too?
bts
386
views
bts
asked
Jun 25, 2018
Mathematical Logic
calculus
differentiation
continuity
engineering-mathematics
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–
0
votes
1
answer
470
Derivative
What is the derivative of the following function at x=0? F(x)= x ^(1/3)
What is the derivative of the following function at x=0?F(x)= x ^(1/3)
bts
498
views
bts
asked
Jun 25, 2018
Mathematical Logic
engineering-mathematics
calculus
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–
0
votes
1
answer
471
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.
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 equa...
bts
1.8k
views
bts
asked
Jun 21, 2018
Mathematical Logic
rank-of-matrix
engineering-mathematics
matrix
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–
0
votes
0
answers
472
Kenneth Rosen Edition 6th Exercise 8.4 Question 54 (Page No. 564)
How many non-isomorphic directed graphs are there with $n$ vertices when $n$ is $2$ $3$ $4$
How many non-isomorphic directed graphs are there with $n$ vertices when $n$ is$2$$3$$4$
swati96
317
views
swati96
asked
Jun 18, 2018
Graph Theory
engineering-mathematics
discrete-mathematics
kenneth-rosen
graph-theory
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–
0
votes
0
answers
473
Kenneth rosen
How many non-isomorphic graphs are there with six vertices and four edges?
How many non-isomorphic graphs are there with six vertices and four edges?
swati96
262
views
swati96
asked
Jun 18, 2018
Graph Theory
engineering-mathematics
discrete-mathematics
graph-theory
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–
0
votes
0
answers
474
Graphs, kenneth rosen
How many non-isomorphic simple graphs are there with five vertices and three edges?
How many non-isomorphic simple graphs are there with five vertices and three edges?
swati96
216
views
swati96
asked
Jun 18, 2018
Graph Theory
engineering-mathematics
discrete-mathematics
graph-theory
+
–
0
votes
1
answer
475
spanning tree
How we get maximum no. of spanning tree for give $n$ node is $n^{(n-2)}$
How we get maximum no. of spanning tree for give $n$ node is $n^{(n-2)}$
piya
371
views
piya
asked
Jun 18, 2018
Graph Theory
engineering-mathematics
discrete-mathematics
graph-theory
+
–
1
votes
1
answer
476
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.
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.
pbhati
5.1k
views
pbhati
asked
Jun 13, 2018
Linear Algebra
linear-algebra
engineering-mathematics
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–
0
votes
0
answers
477
ISI 2014 MMA- 9
Sammohan Ganguly
304
views
Sammohan Ganguly
asked
Jun 12, 2018
Mathematical Logic
userisi2014
usermod
engineering-mathematics
+
–
1
votes
1
answer
478
Definite Integral
$\displaystyle S = \int_{0}^{2\pi } \sqrt{4\cos^{2}t +\sin^{2}t} \, \, dt$ Please explain how to solve it.
$\displaystyle S = \int_{0}^{2\pi } \sqrt{4\cos^{2}t +\sin^{2}t} \, \, dt$Please explain how to solve it.
ankitgupta.1729
910
views
ankitgupta.1729
asked
Jun 11, 2018
Calculus
calculus
integration
engineering-mathematics
integrals
+
–
1
votes
0
answers
479
Number of distinct cycles of length 4 in a complete graph of 6 labelled vertices.
This is in reference to the below question https://gateoverflow.in/473/gate2012-38 My doubt here is In this question, we can also solve like first we select 4 vertices out of 6 in 6C4 ways. Now we need to count ... evaluates to 3 in case of n=4.So by multiplication rule, total cycles we have 45.Is this way correct?
This is in reference to the below questionhttps://gateoverflow.in/473/gate2012-38My doubt here isIn this question, we can also solve like first we select 4 vertices out o...
Ayush Upadhyaya
2.3k
views
Ayush Upadhyaya
asked
Jun 6, 2018
Graph Theory
graph-theory
engineering-mathematics
+
–
3
votes
2
answers
480
Number of Subgraphs of Kn?
I was searching for this question and found below link How many subgraphs does $K_5$ have? Here, in general, it is given to be $\displaystyle\sum_{r=0}^{n}\binom{n}{r}2^{\frac{r(r-1)}{2}}$ My doubt is that the case for $r=0$ is taken if we select none of the vertices of $K_n$? Why the case for $ r=0$ considered?
I was searching for this question and found below linkHow many subgraphs does $K_5$ have?Here, in general, it is given to be$\displaystyle\sum_{r=0}^{n}\binom{n}{r}2^{\fr...
Ayush Upadhyaya
2.8k
views
Ayush Upadhyaya
asked
Jun 5, 2018
Graph Theory
engineering-mathematics
graph-theory
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–
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