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Welcome to GATE CSE Doubts, where you can ask questions and receive answers from other members of the community.

Recent questions tagged engineering-maths

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2 answers 15 views
Hi I need other resource for calculus cause I doing now mitocw David jerison calculus course as I on 10th video I realized this course is way too far for gate exam or psu exams cause this course give detailed proof and solution for every formula for differentiation like ... can follow kreatyrx? Please help me I am very confused ? As I give this week to complete engg maths full please reply fast
asked 6 days ago in Mathematical Logic ykrishnay 103 points 15 views
0 votes
1 answer 20 views
Hi There is 2 book for graph theory so which book is followed because is rosen is short for graph theory and deo is very detailed so for gate which book is followed ? in rosen so there is complete detail for graph theory so if i read rosen so can i make gate related questions or not ? thank you
asked Jun 30 in Graph Theory ykrishnay 103 points 20 views
0 votes
1 answer 38 views
hi so what is least resource for calculus mainly for gate only, cause mit video is very long it is very time consuming
asked Jun 28 in Mathematical Logic ykrishnay 103 points 38 views
0 votes
0 answers 35 views
The function RAND() returns a positive integer from the uniform distribution lying between 1 and 100 (including both 1 and 100). Write an algorithm (in pseudo-code) using the given function RAND() to return a number from the binomial distribution with parameters (100, 1/4).
asked Aug 11, 2020 in Algorithms suparna kar 9 points 35 views
0 votes
0 answers 18 views
0 votes
0 answers 53 views
The value of ‘x’ for which all the eigen values of the matrix given below are real is 10 5+j 4 x 20 2 4 2 -10 5+j b. 5-j c.1-5j d.1+5j
asked Apr 2, 2020 in Mathematical Logic Shivateja MST 45 points 53 views
0 votes
0 answers 24 views
Say in GATE instead of 65 questions there are 61 questions from 11 subjects where 10 subjects contain $6$ questions each and the remaining one contain $1$ question only. In how many ways the paper can be set to satisfy this constraint? Ans should be 11 right? as we need have $11\choose1$ ways
asked Jan 19, 2020 in Mathematical Logic Debapaul 541 points 24 views
0 votes
0 answers 29 views
Can some one please provide the solution to the problem given in the link: https://gateoverflow.in/49479/isro2007-09 Thank you
asked Jan 11, 2020 in Linear Algebra Pratyush Priyam Kuan 1.1k points 29 views
0 votes
0 answers 20 views
If the mean of a normal frequency distribution of 1000 items is 25 and its standard deviation is 2.5, then its maximum ordinate is : I am getting → 1 / (2.5 * sqrt (2 * pie)) , but option seems none , I am not able to get why answer here include multiply by 1000 : https://gateoverflow.in/50517/isro2009-65
asked Jan 5, 2020 in Probability dr_Jackal 5 points 20 views
0 votes
1 answer 2K views
For the following set of simultaneous equations 1.5x – 0.5y +z =2 4x + 2y + 3z =9 7x + y +5z =10 The solution is unique infinitely many solutions exist the equations are incompatible finite many solutions exist Anyone please clarify.
asked Jan 1, 2020 in Linear Algebra Shivateja MST 45 points 2K views
0 votes
0 answers 36 views
If we consider a group (G,*) and consider two elements g and f that belongs to G then how can we define (g * f)^3? Is it like (g * f)(g * f )(g * f)? Anyone please clarify,
asked Dec 31, 2019 in Set Theory & Algebra Shivateja MST 45 points 36 views
0 votes
0 answers 38 views
Is it necessary to read Convergence and Divergence and their related tests of Improper Integrals,Volume of solids of revolution,length of arc of a curve for GATE ? It seems there are no questions in these from past few years. Anyone please clarify.
asked Dec 27, 2019 in Calculus Shivateja MST 45 points 38 views
0 votes
1 answer 39 views
What if I have a function "X" and it's inverse "Y" can I guaranteed say that the function X is bijective? Or in simple terms can I say inverse of a function exists if and only if it's bijective?
asked Dec 24, 2019 in Set Theory & Algebra Peter Smith 5 points 39 views
0 votes
0 answers 34 views
The number of onto function possible from set A={1,2,3,4,5,6} to set B={a,b,c,d} Such that f(1)=a and f(2) is not b?
asked Dec 23, 2019 in Set Theory & Algebra Peter Smith 5 points 34 views
0 votes
0 answers 26 views
Let $f(x) = 2x$ and $g(x) = sinx$. The domain and range of the composite function $gof$ is Domain is all real x and range is −1 ≤ y ≤ 1 Domain is all real x and range is −2 ≤ y ≤2 Domain is −1 ≤ y ≤ 1 and range is −1 ≤ y ≤ 1 d. Domain is all positive real values and range is -½ <= x<= ½
asked Dec 17, 2019 in Mathematical Logic GAITONDE 2.6k points 26 views
0 votes
0 answers 11 views
Hi Can someone please explain the answer to question in the below link . I am not able to understand it . Thank You https://gateoverflow.in/135069/mathematics-gate-ee-17
asked Dec 13, 2019 in Mathematical Logic Pratyush Priyam Kuan 1.1k points 11 views
0 votes
0 answers 43 views
A Set S has 20 elements.A Subset P of S is selected at random.After inspecting the elements the elements are put back in to S and then a subset Q is selected at random.Then the probability that P and Q are disjoint is _______ (1/3)^20 (1/2)^20 (2/3)^20 (3/4)^20 Anyone please clarify.
asked Dec 13, 2019 in Probability Shivateja MST 45 points 43 views
0 votes
0 answers 95 views
If a Graph G have n vertices and all but one of odd degree,then no. of vertices of odd degree in G’ is ____ Assume G is a simple connected graph. Anyone please clarify.
asked Dec 2, 2019 in Graph Theory Shivateja MST 45 points 95 views
0 votes
0 answers 53 views
It is given “A complete bipartite graph Km,n is planar iff m<=2 or n<=2” But it has to be m<=2 and n<=2 right? Anyone please clarify.
asked Nov 29, 2019 in Graph Theory Shivateja MST 45 points 53 views
0 votes
0 answers 26 views
Can anyone explain how to identify distinct Hamiltonian edge cycles in a graph with some example? Here distinct implies w.r.t structure or w.r.t order? Suppose if we consider K3, if we consider any order like 1-2-3-1 or 1-3-2-1 or 2-3-1-2 or 2-1-3-2 or 3-1-2-3 or 3-2-1-3. All these have same structures and some are obtained by reversing some of the orders. Please clarify.
asked Nov 29, 2019 in Graph Theory Shivateja MST 45 points 26 views
0 votes
1 answer 42 views
How many simple graphs are possible with n vertices and m edges (m < C(n,2))? Anyone please clarify.
asked Nov 28, 2019 in Graph Theory Shivateja MST 45 points 42 views
0 votes
1 answer 30 views
How many simple non-ismorphic trees pairwise are possible with 5 vertices
asked Nov 27, 2019 in Graph Theory amit166 87 points 30 views
0 votes
1 answer 34 views
Statement 1 : ∀x ∃y P(x,y) Statement 2 : ∃y ∀x P(x,y) Which of these statements implies the other and why?
asked Nov 24, 2019 in Mathematical Logic tamaldeepmaity 11 points 34 views
0 votes
1 answer 303 views
Of 30 Personal Computers owned by faculty members in a certain university department,20 run windows,eight have 21 inch monitors,25 have CD-ROM drives.20 have atleast two of these features and 6 have all the three features. How many PC’s have atleast one of these features? How many have none of these features? How many have exactly one feature? Anyone please clarify.
asked Nov 23, 2019 in Combinatory Shivateja MST 45 points 303 views
0 votes
1 answer 104 views
Both $B$ and $D$ are correct, right?
asked Nov 23, 2019 in Mathematical Logic Debapaul 541 points 104 views
0 votes
0 answers 38 views
Consider P(x):x is a politician and S(x): x is a sportsman In ∀x(P(x) → S(x)) we have all politicians who are sportsman and also we can have others who are non politicians but sportsman,who are non politicians and non sportsman right? Please clarify.
asked Nov 21, 2019 in Mathematical Logic Shivateja MST 45 points 38 views
0 votes
0 answers 17 views
asked Nov 16, 2019 in Mathematical Logic Debapaul 541 points 17 views
0 votes
0 answers 23 views
Is this function $y=x^{2}$ bounded between $\left [ -1,1 \right ]$? What bounded actually represents?
asked Nov 12, 2019 in Mathematical Logic srestha 1k points 23 views
0 votes
1 answer 159 views
How to approach these kind of sums? A9 means $A^9$
asked Nov 10, 2019 in Linear Algebra Debapaul 541 points 159 views
0 votes
0 answers 52 views
If $Adj$ $A=\begin{bmatrix} -18 &-11&-10 \\ 2 & 14 &-4 \\ 4 & 5 & -8 \end{bmatrix}$, then absolute value of determinant of $A$ is __________
asked Nov 10, 2019 in Linear Algebra srestha 1k points 52 views
0 votes
2 answers 82 views
Find value infinite series $1+4/7+9/7^{2}+16/7^{3}+25/7^{4}+.........$
asked Nov 7, 2019 in Numerical Ability amit166 87 points 82 views
0 votes
0 answers 26 views
Let $S=\left \{ a,b,c,d \right \}$, and a relation $R$ on $S$ is defined by $R=\left \{ (a,b),(a,c),(a,d),(b,b),(c,a),(d,b),(d,c) \right \}.$ The number of ordered pair in transitive closure of R is ______________ Is $\left ( d,d \right )$ should be transitive closure?
asked Nov 5, 2019 in Set Theory & Algebra srestha 1k points 26 views
0 votes
1 answer 65 views
Which of the following statement is valid? $A)\left \{ \forall \left \{ P\left ( x \right )\vee Q\left ( x \right ) \right \}, \forall x Q\left ( x \right ) \right \}\Rightarrow \exists x P\left ( x \right )$ ... We cannot solve it putting simple logic, We need to use propositional formula here, right?
asked Nov 5, 2019 in Mathematical Logic srestha 1k points 65 views
0 votes
1 answer 73 views
The maximum number of edges possible in a simple graph with $15$ vertices, and degree of each vertex is atmost $5$ is _______ My ans $55$, using $\frac{\left ( n-k \right )\left ( n-k+1 \right )}{2}$ and given ans $37$ using $degree\times V\geq 2E$ Which one correct?
asked Nov 2, 2019 in Graph Theory srestha 1k points 73 views
0 votes
1 answer 300 views
asked Oct 26, 2019 in Probability Debapaul 541 points 300 views
0 votes
1 answer 35 views
Suppose you break a stick of unit length at a point chosen uniformly at random. Then the expected length of the longer stick is ________ My ans is $0.75$ Is this correct?
asked Oct 25, 2019 in Probability Debapaul 541 points 35 views
0 votes
1 answer 80 views
asked Oct 21, 2019 in Graph Theory Debapaul 541 points 80 views
1 vote
1 answer 89 views
Can we represent all real numbers by a function? If so, then both are true right?
asked Oct 21, 2019 in Set Theory & Algebra Debapaul 541 points 89 views
0 votes
0 answers 56 views
Why is $(II)$ not a poset?
asked Oct 21, 2019 in Set Theory & Algebra Debapaul 541 points 56 views
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