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User Happy Mittal
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Recent activity by Happy Mittal
2
answers
1
Mathematics: Gate 2016 EE set-2
A 3X3 matrix P is such that, P^3 = P. Then the eigenvalues of P are: 1) 1, 1, -1 2) 1, 0.5 + j0.866, 0.5 - j0.866 3) 1, -0.5 + j0.866, -0.5 - j0.866 4) 0, 1, -1
answered
in
Linear Algebra
May 24, 2017
4.8k
views
gate2016-ee-2
linear-algebra
eigen-value
3
answers
2
Suppose that 100 people enter a contest and that different winners are selected at random for first, second, and third prizes. What is the probability that Michelle wins one of these prizes if she is one of the contestants?
commented
in
Probability
Apr 26, 2017
2.2k
views
2
answers
3
regarding pointers
What does this mean? int *(*func())[] According to me , it means that its an array of pointers to functions which returns pointers of type int. Am I correct?
commented
in
Programming
Apr 26, 2017
404
views
5
answers
4
GATE CSE 2017 Set 1 | Question: 19
Let $X$ be a Gaussian random variable with mean 0 and variance $\sigma ^{2}$. Let $Y$ = $\max\left ( X,0 \right )$ where $\max\left ( a,b \right )$ is the maximum of $a$ and $b$. The median of $Y$ is ______________ .
answered
in
Probability
Feb 17, 2017
16.0k
views
gatecse-2017-set1
probability
numerical-answers
normal-distribution
2
answers
5
GATE CSE 1996 | Question: 3
Let $f$ be a function defined by $f(x) = \begin{cases} x^2 &\text{ for }x \leq 1\\ ax^2+bx+c &\text{ for } 1 < x \leq 2 \\ x+d &\text{ for } x>2 \end{cases}$ Find the values for the constants $a$, $b$, $c$ and $d$ so that $f$ is continuous and differentiable everywhere on the real line.
commented
in
Calculus
Nov 17, 2016
3.3k
views
gate1996
calculus
continuity
differentiation
normal
descriptive
1
answer
6
#Probability
answered
in
Probability
Nov 5, 2016
182
views
1
answer
7
TIFR2010-Maths-B-2
If $V$ is a vector space over the field $\mathbb{Z}/5\mathbb{Z}$ and $\dim_{Z/5\mathbb{Z}}(V)=3$ then $V$ has. 125 elements 15 elements 243 elements None of the above
commented
in
Linear Algebra
Apr 18, 2016
1.4k
views
tifrmaths2010
vector-space
2
answers
8
IISc2012Research
#IISc2012Research Rank of a matrix, a (i,j)=0,if i+j odd, else 1
answer edited
in
Admissions
Feb 26, 2016
196
views
3
answers
9
IISc2012
How many number less than 100 has an odd number of factors ??
answered
in
Written Exam
Feb 23, 2016
276
views
2
answers
10
GATE CSE 1998 | Question: 1.2
Consider the following set of equations $x+2y=5$ $4x+8y=12$ $3x+6y+3z=15$ This set has unique solution has no solution has finite number of solutions has infinite number of solutions
commented
in
Linear Algebra
Jan 29, 2016
5.2k
views
gate1998
linear-algebra
system-of-equations
easy
1
answer
11
why does the ternary operator evaluates to a garbage value in the below code ?
#include<stdio.h> int main(){ int test=0; float a = 3424.34; printf("hello \n %d",(test? a: 3)); return 0; } It is giving output as hello 0 ,I am unable to understand the logic for this so plz clarify this .
commented
in
Programming
Jan 20, 2016
384
views
programming-in-c
1
answer
12
quantifiers
1. Let P(x, y) be a propositional function. Show that∃x ∀y P(x, y) → ∀y ∃x P(x, y) is a tautology. 2. Let P(x) and Q(x) be propositional functions. Showthat ∃x (P(x) → Q(x)) and & ... 4. If ∀x ∃y P(x, y) is true, does it necessarily follow that ∃x ∀y P(x, y) is true?
answered
in
Mathematical Logic
Jan 11, 2016
1.8k
views
1
answer
13
What is the time complexity of this problem ?
Given an array S containing n real numbers, and a real number x. We want to find any two elements p and q in the array such that their sum is greater than the real number x. What is the best possible time complexity to find p and q ? ... first and second element's sum is greater than x , then it can be done in O(1) time , right ? Please correct me.
answered
in
Algorithms
Jan 11, 2016
272
views
algorithms
time-complexity
5
answers
14
GATE CSE 2006 | Question: 23
$F$ is an $n\times n$ real matrix. $b$ is an $n\times 1$ real vector. Suppose there are two $n\times 1$ vectors, $u$ and $v$ such that, $u ≠ v$ and $Fu = b, Fv = b$. Which one of the following statements is false? Determinant of $F$ is zero. There are an infinite number of solutions to $Fx = b$ There is an $x≠0$ such that $Fx = 0$ $F$ must have two identical rows
commented
in
Linear Algebra
Dec 28, 2015
6.9k
views
gatecse-2006
linear-algebra
normal
matrix
2
answers
15
TIFR2010-Maths-B-12
If $n$ and $m$ are positive integers and $n^{9}=19m+r$, then the possible values for $r$ modulo 19 are. Only 0 Only 0, $\pm$ 1 Only $\pm$ 1 None of the above
answered
in
Quantitative Aptitude
Oct 14, 2015
935
views
tifrmaths2010
quantitative-aptitude
modular-arithmetic
1
answer
16
TIFR2010-Maths-B-10
Let $x$ and $y \in \mathbb{R}^{n}$ be non-zero column vectors, from the matrix $A=xy^{T}$, where $y^{T}$ is the transpose of $y$. Then the rank of $A$ is: $2$ $0$ At least $n/2$ None of the above
answered
in
Linear Algebra
Oct 14, 2015
1.4k
views
tifrmaths2010
matrix
1
answer
17
TIFR2010-Maths-B-9
Let $G=\left \{ z \in \mathbb{C} \mid z^n = 1 \text{ for some positive integer } n \right \}$. Then under multiplication of complex numbers, $G$ is a group of finite order $G$ is a group of infinite order, but every element of $G$ has finite order $G$ is a cyclic group None of the above
answered
in
Set Theory & Algebra
Oct 13, 2015
995
views
tifrmaths2010
set-theory&algebra
group-theory
5
answers
18
TIFR CSE 2010 | Part B | Question: 26
Suppose there is a balanced binary search tree with $n$ nodes, where at each node, in addition to the key, we store the number of elements in the sub tree rooted at that node. Now, given two elements $a$ and $b$, such that $a < b$ ... $O(n)$ comparisons and $O(n)$ additions, using depth-first- search.
commented
in
DS
Oct 9, 2015
6.6k
views
tifr2010
binary-search-tree
2
answers
19
counting
Find the number of ways of forming a committee of 9 people drawn from 3 different parties so that no party has absolute majority in committee?
answered
in
Combinatory
Oct 9, 2015
420
views
1
answer
20
expectation
In a lottery there are 200 prizes of Rs 5 ,20 prizes of Rs 25 and 5 prizes of Rs 100.Assuming 10000 prizes tickets are to be issued and sold what is the fair price to pay for ticket? 1)Rs 0.2 2)Rs 0.4 3)Rs 0.5 4)Rs 0.6
answered
in
Probability
Oct 6, 2015
1.6k
views
1
answer
21
probability
If 20% of bolts produced by machine are defective determine probability that out of 4 bolts choosen number of defective bolts is less than 2 1)27/64 2)81/256 3)27/256 4)512/625
answered
in
Probability
Oct 6, 2015
3.4k
views
1
answer
22
exponential distribution
Suppose a system contains certain type of component whose lifetime is T .Random variable T is modelled by exponential distribution with mean time to failure is b=5 .Probability that given component installed on system is still working after 8 years is 1)0.16 2)0.17 3 ... that atleast 2 components are still functioning at end of 8 years? 1)0.4128 2)0.3645.3)0.3149 4)0.2627
answered
in
Probability
Oct 6, 2015
3.1k
views
1
answer
23
no of non negative solution
number of non negative integer solution for 1)x1+x2+x3+x4+x5
answered
in
Combinatory
Oct 5, 2015
240
views
1
answer
24
combination
Suppose 10 persons are in canteen whoch offers coffee,tea,pepsi How many ways they can order their drinks as a group if each persin wants one of the 3 drinks ?
answered
in
Combinatory
Oct 5, 2015
289
views
2
answers
25
what is viable prefix?
Can someone describe what is a viable prefix with an example?
commented
in
Compiler Design
Sep 29, 2015
10.1k
views
compiler-design
viable-prefix
1
answer
26
How to solve below question on trees ?
I am geting confused with the term maximum of p sons , otherwise I was applying handshaking lemma but this maximum word is where I am getting stucked , so plz clarify this .
commented
in
Programming
Sep 28, 2015
232
views
2
answers
27
Eigen vectors
if the matrix A (3∗3) has 3 distinct eigen values then the no.of linearly independent eigen vectors for A= a)1 b)2 c)3 d)infinite
answered
in
Linear Algebra
Sep 27, 2015
8.0k
views
4
answers
28
GATE CSE 1994 | Question: 2.2
On the set $N$ of non-negative integers, the binary operation ______ is associative and non-commutative.
answered
in
Set Theory & Algebra
Sep 27, 2015
3.5k
views
gate1994
set-theory&algebra
normal
group-theory
binary-operation
fill-in-the-blanks
1
answer
29
What will be the output?
#include <stdio.h> char str1[100]; char *fun(char str[]) { static int i = 0; if (*str) { fun(str+1); str1[i] = *str; i++; } return str1; } int main() { char str[] = "GATE CS 2015 Mock Test"; printf(" ... kcoM 5102 SC ETAG C)Nothing is printed on screen D)Segmentation Fault i think answer should be option C.But the answer given as B.please explation how.
answered
in
Programming
Sep 27, 2015
1.5k
views
programming
programming-in-c
2
answers
30
How is a stack implemented by a priority queue ?
A priority queue Q is used to implement a stack S that stores characters .PUSH(C) is implemented as Insert(Q,C,K) where K is an appropriate integer key chosen by the implementation .POP is implementd as DELETEMIN(Q) . For a sequence of PUSH ... case , while this element would be at the bottom of the stack so then how will I be able to do this ?
commented
in
DS
Sep 26, 2015
2.2k
views
data-structures
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