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Recent questions tagged engineering-mathematics
2
votes
2
answers
1231
Question on permutation and combination
Given answer: B, Please explain me how to solve it.
Given answer: B, Please explain me how to solve it.
shikharV
1.9k
views
shikharV
asked
Jan 6, 2016
Combinatory
engineering-mathematics
combinatory
+
–
0
votes
1
answer
1232
Question on graph theory
Please explain how did they get that equation in E and V.
Please explain how did they get that equation in E and V.
shikharV
622
views
shikharV
asked
Jan 4, 2016
Graph Theory
graph-theory
engineering-mathematics
+
–
0
votes
0
answers
1233
Sum of all intercepts of inverse of a function?
Tushar Shinde
324
views
Tushar Shinde
asked
Jan 4, 2016
Graph Theory
engineering-mathematics
+
–
0
votes
1
answer
1234
Linear Algebra Doubt
while solving linear equations, there comes a case where rank < number of varibles, then we say there are n-r linearly independent solution. What exactly does it mean ?
while solving linear equations, there comes a case where rank < number of varibles,then we say there are n-r linearly independent solution.What exactly does it mean ?
Sandeep Singh
511
views
Sandeep Singh
asked
Jan 4, 2016
Linear Algebra
engineering-mathematics
linear-algebra
+
–
3
votes
2
answers
1235
Gate_2007 ME
The number of linearly independent Eigen vectors of is a) 0 b) 1 C) 2 d) infinite
The number of linearly independent Eigen vectors of is a) 0b) 1 C) 2d) infinite
Himanshu1
11.0k
views
Himanshu1
asked
Jan 2, 2016
Linear Algebra
engineering-mathematics
linear-algebra
eigen-value
+
–
1
votes
3
answers
1236
Chromatic number
What is the chromatic number of Kn - e (complete graph with an edge removed)?
What is the chromatic number of Kn - e (complete graph with an edge removed)?
Mojo-Jojo
1.6k
views
Mojo-Jojo
asked
Jan 2, 2016
Set Theory & Algebra
engineering-mathematics
set-theory&algebra
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–
3
votes
1
answer
1237
GATE_2014 ME
Consider a 3 x 3 real symmetric matrix S such that two of its eigen values are a ≠ 0 , b ≠ 0 with respective Eigen vectors [ x1 x2 x3 ] , [ y1 y2 y3 ] . If a ≠ b then x1y1 + x2y2 + x3y3 is a) a b) b c) ab d) 0
Consider a 3 x 3 real symmetric matrix S such that two of its eigen values are a ≠ 0 , b ≠ 0 with respective Eigen vectors [ x1 x2 x3 ] , [ y1 y2 y3 ] . If a &ne...
Himanshu1
2.4k
views
Himanshu1
asked
Jan 2, 2016
Linear Algebra
engineering-mathematics
linear-algebra
eigen-value
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–
3
votes
1
answer
1238
Eigen Values of special matrices
A) what are the eigen values of Orthogonal matrix ? Describe general properties. B) what are the Eigen value of skew-symmetric matrix ? Describe general properties. C) Are there any speciality in Eigen values of Symmetric, Hermitian, Skew- Hermitian, Unitary . If there , describe them also.
A) what are the eigen values of Orthogonal matrix ? Describe general properties.B) what are the Eigen value of skew-symmetric matrix ? Describe general properties.C) Are ...
Himanshu1
1.6k
views
Himanshu1
asked
Jan 1, 2016
Linear Algebra
engineering-mathematics
eigen-value
linear-algebra
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–
3
votes
2
answers
1239
Bayes Probability Question
URN I contains 3 White,2 Black 2 Green Balls. URN II contains 2 White,3 Black 4 Green Balls. URN III contains 5 White,2 Black 2 Green Balls. An urn is chosen at random and two balls are drawn,they happen to be black and green. What is the probability that the come from urns 1) URN I 2) URN II 3) URN III ????
URN I contains 3 White,2 Black 2 Green Balls.URN II contains 2 White,3 Black 4 Green Balls.URN III contains 5 White,2 Black 2 Green Balls.An urn is chosen at random and t...
bahirNaik
2.1k
views
bahirNaik
asked
Jan 1, 2016
Probability
probability
conditional-probability
engineering-mathematics
+
–
4
votes
3
answers
1240
different independent eigen vectors
In A = (aij)nxn where aij = 1 ∀ i,j then number of different independent Eigen Vectors of A are _________ . (a) 1 (b) n-1 (c) 2 (d) n
In A = (aij)nxn where aij = 1 ∀ i,j then number of different independent Eigen Vectors of A are _________ . (a) 1(b) n-1(c) 2(d) n
Himanshu1
1.5k
views
Himanshu1
asked
Dec 31, 2015
Linear Algebra
eigen-value
linear-algebra
engineering-mathematics
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–
0
votes
1
answer
1241
LA:Minimal polynomials and characteristic polynomials
What is the Difference Between Minimal polynomials and characteristic polynomials ? With some example ?
What is the Difference Between Minimal polynomials and characteristic polynomials ? With some example ?
Prasanna
601
views
Prasanna
asked
Dec 31, 2015
Linear Algebra
linear-algebra
engineering-mathematics
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–
1
votes
2
answers
1242
Probability question on a pair of dice
I think the ans should be C, but the given answer is A. Anyone can explain please?
I think the ans should be C, but the given answer is A. Anyone can explain please?
khantesh1
791
views
khantesh1
asked
Dec 31, 2015
Combinatory
engineering-mathematics
probability
+
–
3
votes
2
answers
1243
Counting number of functions which are neither 1-1 nor onto
Let $A = \left \{1, 2, 3, 4 \right \}$. Number of functions possible on $A$ which are neither $1-1$ nor on-to is _________.
Let $A = \left \{1, 2, 3, 4 \right \}$. Number of functions possible on $A$ which are neither $1-1$ nor on-to is _________.
shikharV
580
views
shikharV
asked
Dec 31, 2015
Combinatory
combinatory
engineering-mathematics
+
–
0
votes
1
answer
1244
Question on combinatorics
Given solution of this question: I think that number of 5 elements subsets with 7 should be C(n-1, 4) instead of C(n,4) as we have already fixed 7 so number of elements left will be n-1. Please check
Given solution of this question:I think that number of 5 elements subsets with 7 should be C(n-1, 4) instead of C(n,4) as we have already fixed 7 so number of elements le...
shikharV
1.3k
views
shikharV
asked
Dec 31, 2015
Combinatory
engineering-mathematics
combinatory
+
–
1
votes
2
answers
1245
Question on rolling fair dice
Given answer: A Please explain
Given answer: APlease explain
shikharV
533
views
shikharV
asked
Dec 30, 2015
Combinatory
engineering-mathematics
combinatory
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–
1
votes
1
answer
1246
Question on counting number of ways scholarship can be distributed
Given explanation of the question: I believe that in place of last C(8,3) it should be C(7,3) because 3 people have been already chosen before that. Please check whether I am correct or not.
Given explanation of the question:I believe that in place of last C(8,3) it should be C(7,3) because 3 people have been already chosen before that. Please check whether I...
shikharV
391
views
shikharV
asked
Dec 30, 2015
Combinatory
combinatory
engineering-mathematics
+
–
4
votes
1
answer
1247
First Order Logic Question: English to predicate
2. Let S(x) be the predicate "x is a student," B(x) the predicate "x is a book, " and H(x,y) the predicate "x has y, " where the universe of discourse is the universe, that is the set of all objects. ... will someone explain briefly ? I tried my best to dechiper in to predicate, But failed.
2. Let S(x) be the predicate "x is a student," B(x) the predicate "x is a book, " and H(x,y) the predicate "x has y, " where the universe of discourse is the universe, th...
Prasanna
2.3k
views
Prasanna
asked
Dec 30, 2015
Mathematical Logic
mathematical-logic
first-order-logic
engineering-mathematics
+
–
1
votes
2
answers
1248
Probablity: A bag Contains
Prasanna
399
views
Prasanna
asked
Dec 28, 2015
Probability
probability
engineering-mathematics
+
–
2
votes
1
answer
1249
Combinatory
The number of ways 16 identical objects can be distributed among 4 persons such that each person gets atleast 2 objects is ______. If possible kindly explain me the approach.
The number of ways 16 identical objects can be distributed among 4 persons such that each person gets atleast 2 objects is ______.If possible kindly explain me the approa...
UK
500
views
UK
asked
Dec 27, 2015
Combinatory
combinatory
engineering-mathematics
+
–
2
votes
2
answers
1250
probability
Three numbers are chosen at random without replacement from $\left\{1, 2, 3,....., 10 \right\}$. What is the probability that minimum of the chosen numbers is $3$ or their maximum is $7$? $\frac{11}{30}$ $\frac{11}{40}$ $\frac{1}{7}$ $\frac{1}{8}$
Three numbers are chosen at random without replacement from $\left\{1, 2, 3,....., 10 \right\}$. What is the probability that minimum of the chosen numbers is $3$ or thei...
Himanshu1
2.1k
views
Himanshu1
asked
Dec 26, 2015
Probability
probability
engineering-mathematics
+
–
3
votes
1
answer
1251
Eigen values
The possible set of eigen values of a $4*4$ skew symmetric; orthogonal real matrix is A). $\pm i$ B), $(\pm i,\pm1)$ C). $\pm1$ D). $(0,\pm i)$
The possible set of eigen values of a $4*4$ skew symmetric; orthogonal real matrix is A). $\pm i$B), $(\pm i,\pm1)$C). $\pm1$D). $(0,\pm i)$
Himanshu1
1.9k
views
Himanshu1
asked
Dec 26, 2015
Linear Algebra
eigen-value
engineering-mathematics
linear-algebra
+
–
1
votes
1
answer
1252
Subject Topic- Probability
what is positively skewed ,symmetric and negatively skewed distribution?
what is positively skewed ,symmetric and negatively skewed distribution?
Amey
954
views
Amey
asked
Dec 25, 2015
Probability
statistics
probability
engineering-mathematics
+
–
3
votes
1
answer
1253
linear equation
consider following set of equations $x_1+x_2+x_3=6$ $2x_1+2x_2+3x_3=14$ $3x_1+x_2+2x_3=14$ Solution for this set exists when value of $x_2$ is
consider following set of equations$x_1+x_2+x_3=6$$2x_1+2x_2+3x_3=14$$3x_1+x_2+2x_3=14$Solution for this set exists when value of $x_2$ is
Pooja Palod
651
views
Pooja Palod
asked
Dec 16, 2015
Linear Algebra
engineering-mathematics
+
–
4
votes
3
answers
1254
eigen value
Eigenvalue of matrix $A$ , $\begin{bmatrix} 2 &7 &10 \\ 5& 2 & 25\\ 1& 6 &5 \end{bmatrix}$ is $-9.33$ other eigenvalue is 1) $18.33$ 2) $-18.33$ 3) $18.33-9.33 i$ 4) $18.33+9.33i$
Eigenvalue of matrix $A$ , $\begin{bmatrix} 2 &7 &10 \\ 5& 2 & 25\\ 1& 6 &5 \end{bmatrix}$ is $-9.33$ other eigenvalue is1) $18.3...
Pooja Palod
1.0k
views
Pooja Palod
asked
Dec 16, 2015
Linear Algebra
engineering-mathematics
eigen-value
+
–
0
votes
1
answer
1255
maxima-minima query
consider the following function f(x) = x3 /3+ x2 /2 -6x+1000 find the intervals on which f is increasing. Is my solution right approach for this kind of numerical?? Caption
consider the following function f(x) = x3 /3+ x2 /2 -6x+1000find the intervals on which f is increasing.Is my solution right approach for this kind of numerical?? Caption...
khushtak
973
views
khushtak
asked
Dec 15, 2015
Calculus
maxima-minima
engineering-mathematics
calculus
+
–
1
votes
0
answers
1256
Find the Coefficient
Find the coefficient of $x^4$ in the series expansion of $(1+x+x^2)^{-4}$? How do you expand $(1+x+x^2)^{-4}$? Using Taylor series?
Find the coefficient of $x^4$ in the series expansion of $(1+x+x^2)^{-4}$?How do you expand $(1+x+x^2)^{-4}$? Using Taylor series?
amarVashishth
442
views
amarVashishth
asked
Dec 3, 2015
Mathematical Logic
engineering-mathematics
+
–
4
votes
1
answer
1257
max no of saddle point.. explain
A $n \times n$ matrix is given and an element $a_{ij}$ is called saddle point if all the element in the $i^{th}$ row are less than $a_{ij}$ and all the element in $j^{th}$ column are greater than $a_{ij}$. How many maximum no of saddle point are possible. $2$ $3$ $n$ $1$
A $n \times n$ matrix is given and an element $a_{ij}$ is called saddle point if all the element in the $i^{th}$ row are less than $a_{ij}$ and all the element in $j^{th}...
yes
442
views
yes
asked
Nov 30, 2015
Calculus
engineering-mathematics
+
–
7
votes
3
answers
1258
combinatory
How many ways are there for a horse race with 4 horses to finish if ties are possible?(any number of horses may tie)
How many ways are there for a horse race with 4 horses to finish if ties are possible?(any number of horses may tie)
Pooja Palod
956
views
Pooja Palod
asked
Nov 27, 2015
Combinatory
combinatory
engineering-mathematics
+
–
2
votes
2
answers
1259
Suppose the element a,b in a group satisfies aba-1=b2 for b<>e
worst_engineer
5.0k
views
worst_engineer
asked
Nov 25, 2015
Set Theory & Algebra
set-theory&algebra
engineering-mathematics
+
–
30
votes
4
answers
1260
What is/was your strategy for GATE Preparation?
Frequently it has been found that people ask each other or at least try to read about/ hear from others about how are they preparing for GATE. This question is a place where you should share answers to : What is your formula for ... , What is the critical point of advice. you prefer to give Any other relevant info. that you can come up with
Frequently it has been found that people ask each other or at least try to read about/ hear from others about how are they preparing for GATE.This question is a place whe...
amarVashishth
7.0k
views
amarVashishth
asked
Nov 23, 2015
Study Resources
study-resources
databases
theory-of-computation
engineering-mathematics
operating-system
algorithms
co-and-architecture
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