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Recent questions tagged summation
5
votes
4
answers
31
Time complexity and output
#include <stdio.h> #define N 3 int main() { int array[N] = {1,2,3}; int i,j; for ( i=1; i<(1<<N); i++) { for( j=0; j<N; j++) { if((1<<j)&i) { printf("%d", array[j]); } } printf("\n"); } return 0 ... $N = n \;\; , n \; \text{ is a positive integer }$ ? B. What is the output? C. What will be the complexity when $N$ is large.
dd
asked
in
Programming in C
Dec 17, 2016
by
dd
1.8k
views
time-complexity
bitwise
programming-in-c
combinatory
summation
sub-set
binomial-theorem
0
votes
1
answer
32
summation
5 digit numbers are possible from digits 1, 2, 3, 4, 5, 6, 7 When each digit is distinct is 7P5 . what is sum of all such numbers?
Neal Caffery
asked
in
Combinatory
Dec 10, 2016
by
Neal Caffery
376
views
summation
18
votes
3
answers
33
ISRO2016-2
What is the sum to infinity of the series, $3+6x^{2}+9x^{4}+12x^{6}+ \dots$ given $\left | x \right |<1$ $\frac{3}{(1+x^{2})}$ $\frac{3}{(1+x^{2})^{2}}$ $\frac{3}{(1-x^{2})^{2}}$ $\frac{3}{(1-x^{2})}$
ManojK
asked
in
Quantitative Aptitude
Jul 4, 2016
by
ManojK
6.6k
views
quantitative-aptitude
summation
isro2016
4
votes
2
answers
34
ISI2013-PCB-A-2
Find the value of $ \Sigma ij$, where the summation is over all integers $i$ and $j$ such that $1 \leq i < j \leq 10$.
go_editor
asked
in
Quantitative Aptitude
May 31, 2016
by
go_editor
1.4k
views
isi2013
quantitative-aptitude
summation
numerical-answers
1
vote
1
answer
35
Find a formula when m is a positive integer?
$(a) \sum_{k = 0}^{m} \left \lfloor \sqrt k \right \rfloor$ $(b) \sum_{k = 0}^{m} \left \lfloor \sqrt {k^{3}} \right \rfloor$ Is there any quick way to find the formula for complex expression?
SomnathKayal
asked
in
Set Theory & Algebra
Mar 28, 2016
by
SomnathKayal
511
views
functions
set-theory&algebra
summation
1
vote
1
answer
36
What are the values of the sum?
$\sum_{j \in S} 1$ where S = {1, 3, 5, 7}. if we have $\sum_{j = 1}^{n} 1$ then the answer will be n. But what happens if this a set?
SomnathKayal
asked
in
Set Theory & Algebra
Mar 28, 2016
by
SomnathKayal
671
views
set-theory&algebra
summation
9
votes
1
answer
37
GATE2015 EC-3: GA-9
$\log \tan 1^o + \log \tan 2^o + \dots + \log \tan 89^o$ is $\ldots$ $1$ $1/\sqrt{2}$ $0$ $−1$
Akash Kanase
asked
in
Quantitative Aptitude
Feb 12, 2016
by
Akash Kanase
1.7k
views
gate2015-ec-3
summation
quantitative-aptitude
logarithms
44
votes
5
answers
38
GATE CSE 2015 Set 1 | Question: 26
$\sum\limits_{x=1}^{99}\frac{1}{x(x+1)}$ = ______.
makhdoom ghaya
asked
in
Combinatory
Feb 13, 2015
by
makhdoom ghaya
8.1k
views
gatecse-2015-set1
combinatory
normal
numerical-answers
summation
18
votes
2
answers
39
GATE CSE 1994 | Question: 15
Use the patterns given to prove that $\sum\limits_{i=0}^{n-1} (2i+1) = n^2$ (You are not permitted to employ induction) Use the result obtained in (A) to prove that $\sum\limits_{i=1}^{n} i = \frac{n(n+1)}{2}$
Kathleen
asked
in
Combinatory
Oct 5, 2014
by
Kathleen
2.0k
views
gate1994
combinatory
proof
summation
descriptive
17
votes
8
answers
40
GATE CSE 2008 | Question: 24
Let $P =\sum \limits_ {i\;\text{odd}}^{1\le i \le 2k} i$ and $Q = \sum\limits_{i\;\text{even}}^{1 \le i \le 2k} i$, where $k$ is a positive integer. Then $P = Q - k$ $P = Q + k$ $P = Q$ $P = Q + 2k$
Kathleen
asked
in
Combinatory
Sep 11, 2014
by
Kathleen
5.5k
views
gatecse-2008
combinatory
easy
summation
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