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Recent questions tagged engineering-mathematics

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4 answers
751
linear algebra
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9 votes
3 answers
752
Probability Gate EE 2016
Candidates were asked to come to an interview with 3 pens each. Black, blue, green and red were the permitted pen colours that the candidate could bring. The probability that a candidate comes with all 3 pens having the same colour is _________.
Candidates were asked to come to an interview with 3 pens each. Black, blue, green and red were the permitted pen colours that the candidate could bring. The probability ...
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2 votes
2 answers
753
Set Relation
Answer please explain the ans. R is antisymmetric then aRb, bRa -> a=b so a-b=0 and 0 is not odd positive then how it is antisymmetric?
Answer please explain the ans.R is antisymmetric then aRb, bRa - a=b so a-b=0 and 0 is not odd positive then how it is antisymmetric?
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1 votes
0 answers
754
maxima minima problem
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 ____ .
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2 votes
1 answer
755
Matrices
If A is a non singular matrix and $\left (I - A + A^{2} - ..... + (-1)^{n}A^{n}\right ) =0$) Then $A^{-1}$ is
If A is a non singular matrix and$\left (I - A + A^{2} - ..... + (-1)^{n}A^{n}\right ) =0$)Then $A^{-1}$ is
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3 votes
1 answer
756
probability
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4 votes
5 answers
757
calculus problem on limits
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1 votes
1 answer
758
calculus problem on limits
1) 2) Answer for 1) infinity 2) 1/sqrt(3) please verify
1)2)Answer for 1) infinity 2) 1/sqrt(3)please verify
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1 votes
1 answer
759
doubt in calculus
What is the difference between monotonically increasing and strictly increasing ??? are they both same or different ???
What is the difference between monotonically increasing and strictly increasing ??? are they both same or different ???
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1 votes
0 answers
760
limit
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1 votes
2 answers
761
eigen value
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1 votes
1 answer
762
Linear algebra
How we find eigen values from characteristics equation ? Steps please.
How we find eigen values from characteristics equation ?Steps please.
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1 votes
2 answers
764
linear algebra
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1 votes
1 answer
765
Probability: Poisson distribution calculation vs normal probability calculation
In this question if we do simply probability calculation then it is 8/20 40% but when I am appling poisson distribution then it is 40.4%. why we are getting two different answers??
In this question if we do simply probability calculation then it is 8/20 40%but when I am appling poisson distribution then it is 40.4%.why we are getting two different a...
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1 votes
0 answers
767
linear algebra
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2 votes
1 answer
768
linear algebra
Rank of matrix : 1) Rank is equal to the number of linearly independent rows or columns in the matrix 2)Rank is equal to the number of non zero rows in ECHLON FORM of matrix ARE BOTH the things same pls explain ?
Rank of matrix :1) Rank is equal to the number of linearly independent rows or columns in the matrix 2)Rank is equal to the number of non zero rows in ECHLON FORM of matr...
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1 votes
2 answers
769
linear algebra
How many different entries can a 4 * 4 skew-symmetric matrix have? An n* n skew-symmetric matrix? What if it is symmetric matrix ?
How many different entries can a 4 * 4 skew-symmetric matrix have? An n* n skew-symmetric matrix? What if it is symmetric matrix ?
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1 votes
1 answer
770
Linear algebra Determinant
True/False A matrix is singular iff any row/column is constant multiple of any other row/column?
True/FalseA matrix is singular iff any row/column is constant multiple of any other row/column?
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1 votes
1 answer
772
Proof Results in Limits
Proof these results in limits 1. $\lim_{x\rightarrow0}(1+x)^{1/x} = e$ 2. $\lim_{x\rightarrow0}(1+nx)^{1/x} = e^n$ 3. $\lim_{x\rightarrow\infty }(1+\frac{1}{x})^{x} = e$ 4. $\lim_{x\rightarrow\infty }(1+\frac{a}{x})^{x} = e^a$
Proof these results in limits1. $\lim_{x\rightarrow0}(1+x)^{1/x} = e$2. $\lim_{x\rightarrow0}(1+nx)^{1/x} = e^n$3. $\lim_{x\rightarrow\infty }(1+\frac{1}{x})^{x} = e$4. $...
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1 votes
1 answer
773
Doubt in calculus
How to solve question 1 without reduction formula. Q1> $\int_{0}^{ \Pi /2}sin^6xcos^2xdx$ Q2> $\lim_{x\rightarrow0}\frac{1-cos^2}{2x^4}$
How to solve question 1 without reduction formula.Q1 $\int_{0}^{ \Pi /2}sin^6xcos^2xdx$Q2 $\lim_{x\rightarrow0}\frac{1-cos^2}{2x^4}$
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1 votes
1 answer
774
Calculus: Need Explanation
Q1> $\lim_{x->0} xlogx$ Q2> $\lim_{x\rightarrow Inf} \frac{sin x}{ x}$ for first question why we can't take: $\frac{x^{2} log x}{x}$
Q1 $\lim_{x->0} xlogx$Q2 $\lim_{x\rightarrow Inf} \frac{sin x}{ x}$for first question why we can't take:$\frac{x^{2} log x}{x}$
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2 votes
1 answer
775
Calculate Eigen Vector And Eigen Value
This matrix is singular with rank one. Find three $λ$’s and three eigenvectors. $\begin{bmatrix}1\\2 \\1 \end{bmatrix}$ $\begin{bmatrix}2&1 &2 \end{bmatrix}$ = $\begin{bmatrix}2 & 1 &2\\4 & 2 & 4\\2 & 1 &2\end{bmatrix}$
This matrix is singular with rank one. Find three $λ$’s and three eigenvectors.$\begin{bmatrix}1\\2 \\1 \end{bmatrix}$ $\begin{bmatrix}2&1 &2 \end{bmatrix}$ = $\begin...
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3 votes
1 answer
776
Find the last row of the Matrix
For the first one I have got -28 and 11 as the answer but for the matrix C I am not able to get the value of element c32. c31 = c33 = 6.
For the first one I have got -28 and 11 as the answer but for the matrix C I am not able to get the value of element c32.c31 = c33 = 6.
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1 votes
1 answer
777
engineering mathematics
The minimum value of the function $f(x)=x^3/3-x$ occurs at x= 1 x= -1 x= 0 x= $\frac{1}{\sqrt[]{3}}$
The minimum value of the function $f(x)=x^3/3-x$ occurs at x= 1x= -1x= 0x= $\frac{1}{\sqrt[]{3}}$
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2 votes
1 answer
778
State true/ false (with reason) For Linear Algebra
Q1> Is it possible to have no Eigen vector corresponding to an Eigen value. Q2> Rank of a matrix is equal to the number of non-zero Eigen values that matrix has. {Explain with reason and counter example.}
Q1 Is it possible to have no Eigen vector corresponding to an Eigen value.Q2 Rank of a matrix is equal to the number of non-zero Eigen values that matrix has.{Explain wit...
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4 votes
2 answers
779
Combination (Repetition)
A girl has to choose 4 items from a bucket which contains 3 red, 3 green, and 4 blue balls, now in how many ways she can do this?
A girl has to choose 4 items from a bucket which contains 3 red, 3 green, and 4 blue balls, now in how many ways she can do this?
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