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Highest voted questions in Engineering Mathematics

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3621
Find Inverse
Inverse of this matrix $\begin{bmatrix} 2 &1 &1 \\ 3 &2 &1 \\ 2& 1 &2 \end{bmatrix}$ will be A)$\begin{bmatrix} 3 &-4 &-1 \\ -1 &2 &0 \\ -1 &1 &1 \end{bmatrix}$ B)$\begin{bmatrix} 3 &-1 &-1 \\ -4 &2 &1 \\ -1& 0 &1 \end{bmatrix}$
Inverse of this matrix$\begin{bmatrix} 2 &1 &1 \\ 3 &2 &1 \\ 2& 1 &2 \end{bmatrix}$will beA)$\begin{bmatrix} 3 &-4 &-1 \\ -1 &2 &0 \\ -1 &1 &1 \end{bmatrix}$B)$\begin{bma...
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3622
Sheldon ross 5J
A deck of 52 playing cards is shuffled, and the cards are turned up one at a time until the first ace appears. Is the next card—that is, the card following the first ace—more likely to be the ace of spades or the two of clubs?
A deck of 52 playing cards is shuffled, and the cards are turned up one at a time untilthe first ace appears. Is the next card—that is, the card following the first ace...
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3623
#Sheldon ross example
suppose 5 people are to be randomly selected from a group of 20 individuals consisting of 10 married couples, and we want to determine P(N), the probability that the 5 chosen are all unrelated. (That is, no two are married to each other.)?
suppose 5 people are to be randomly selected from a group of 20 individualsconsisting of 10 married couples, and we want to determine P(N), the probabilitythat the 5 chos...
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3625
mADe eAsY
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3626
GATEBOOK-Combinatorics
How many license plates with 3 decimal digits followed by 3 letters do not contain both the number 0 and the letter O?
How many license plates with 3 decimal digits followed by 3 letters do not contain both the number 0 and the letter O?
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1 votes
1 answer
3627
proposition logic
CONVERT IN TO LOGIC No one who loves some one is not loved by anyone lets S(x):x is somebody L(x,y):x loves y
CONVERT IN TO LOGICNo one who loves some one is not loved by anyonelets S(x):x is somebodyL(x,y):x loves y
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1 votes
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3628
SELF DOUBT
https://gateoverflow.in/39595/gate2016-2-28 CONSIDER THE FIRST SOLUTION IT EXPLAINS FOR 2ND AT LAST AND CONCLUDED THAT ATLEAST ONE VERTEX SHOULD BE OF ODD DEGREE BUT WHAT IF ALL WILL BE OF ODD ?? WILL IT BE NOT THE CASE LIKE 1.??
https://gateoverflow.in/39595/gate2016-2-28 CONSIDER THE FIRST SOLUTION IT EXPLAINS FOR 2ND AT LAST AND CONCLUDED THAT ATLEAST ONE VERTEX SHOULD BE OF ODD DEGREE BUT WHA...
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1 votes
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3629
self doubt
How many nonisomorphic simple graphs are there with n vertices, when n is a) 2? b) 3? c) 4?
How many nonisomorphic simple graphs are there with n vertices, when n is a) 2? b) 3? c) 4?
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3630
Test Series
Let K$_n$ be such that the vertices are labeled 1,2,3,...n. The number of simple paths between v$_1$ and v$_n$ such that the labels on the path are strictly increasing ____________________
Let K$_n$ be such that the vertices are labeled 1,2,3,...n.The number of simple paths between v$_1$ and v$_n$ such that the labels on the path are strictly increasing ___...
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3631
Power sets
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3632
Test Series
How many integers in the set {1,2,3,4,....121} are not divisible by 2 or 3 or 5? How will I determine in exam how many numbers are divisible by 3 or 2 & 3, 3 & 5, 2& 3 & 5? It will be time-consuming and confusing.
How many integers in the set {1,2,3,4,....121} are not divisible by 2 or 3 or 5?How will I determine in exam how many numbers are divisible by 3 or 2 & 3, 3 & 5, 2& 3 & 5...
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1 votes
1 answer
3633
me book mathematics
Which of following function is strictly bounded?
Which of following function is strictly bounded?
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3634
LINEAR ALGEBRA
IF A=$\begin{bmatrix} 2& -0.1\\ 0 & 3 \end{bmatrix}$ AND A-1=$\begin{bmatrix} \frac{1}{2}& a\\ 0 & b \end{bmatrix}$ then a+b ? a)$\frac{7}{20}$ b)$\frac{3}{20}$ c)$\frac{19}{60}$ d)$\frac{11}{20}$
IF A=$\begin{bmatrix} 2& -0.1\\ 0 & 3 \end{bmatrix}$ AND A-1=$\begin{bmatrix} \frac{1}{2}& a\\ 0 & b\end{bmatrix}$ then a+b ?a)$\frac{7}{20}$ b)$\frac{3}...
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3635
GATE 2014 MA Eigen Values
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1 answer
3636
GATE 2014 MA Groups
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3637
Graph Theory
what is Cyclomatic complexity? what is cyclomatic complexity of tree?
what is Cyclomatic complexity?what is cyclomatic complexity of tree?
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3638
Eigen Values(Matrix is not idempotent)
Given that a matrix $A_{3\times3},$which is not idempotent matrix.And $A^{3}=A.$ Then find them, $1)$ Eigen Values $2)$ Trace of the matrix$=$Sum of Leading Diagonal Elements$=\sum a_{ij},$ where $i=j$ $3)Det(A)$
Given that a matrix $A_{3\times3},$which is not idempotent matrix.And $A^{3}=A.$Then find them,$1)$ Eigen Values$2)$ Trace of the matrix$=$Sum of Leading Diagonal Element...
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1 votes
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3639
System of Equations
My solution:- Since the Determinant of matrix is Zero. So it will posses non trivial solution. Now what should be the answer ? According to me Option D as rank is < Order so infinite number of solutions
My solution:-Since the Determinant of matrix is Zero. So it will posses non trivial solution. Now what should be the answer ?According to me Option D as rank is < Order ...
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3640
P & C
number of 5 letter words made of alphabets [A -...Z] which contains at least one A ? 1-(26)4 2- 5*(26)4 3 -$\binom{26}{4}$ 4-none
number of 5 letter words made of alphabets [A -...Z] which contains at least one A ?1-(26)42- 5*(26)43 -$\binom{26}{4}$4-none
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