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Parth Kohli
Roorkee, Uttarakhand, India
http://bit.ly/IqT6zt
An applied mathematics student.
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Top Questions
56
votes
What is $-i$ exactly?
soft-question
complex-numbers
asked May 19, 2013 at 14:27
math.stackexchange.com
51
votes
Computing $999,999\cdot 222,222 + 333,333\cdot 333,334$ by hand.
arithmetic
contest-math
asked Jan 11, 2013 at 14:38
math.stackexchange.com
35
votes
$n$ people sitting on a circular table without repeating neighbour-sets
combinatorics
discrete-mathematics
graph-theory
ramsey-theory
asked Mar 4, 2017 at 10:49
math.stackexchange.com
22
votes
Why dividing by zero still works
algebra-precalculus
asked Jun 1, 2013 at 15:11
math.stackexchange.com
15
votes
Is a counterexample considered a rigorous proof that a property is not true?
soft-question
proof-theory
asked Dec 22, 2012 at 11:17
math.stackexchange.com
8
votes
How to simplify $\frac{4 + 2\sqrt6}{\sqrt{5 + 2\sqrt{6}}}$?
algebra-precalculus
fractions
asked Dec 3, 2012 at 14:46
math.stackexchange.com
8
votes
What exactly is "approximation"?
soft-question
terminology
definition
approximation
asked Jan 31, 2013 at 19:41
math.stackexchange.com
Top Answers
100
Computing $999,999\cdot 222,222 + 333,333\cdot 333,334$ by hand.
math.stackexchange.com
52
Is zero odd or even?
math.stackexchange.com
41
How is $e^x$ read aloud?
math.stackexchange.com
41
Why can ALL quadratic equations be solved by the quadratic formula?
math.stackexchange.com
29
Can't argue with success? Looking for "bad math" that "gets away with it"
math.stackexchange.com
19
If $a > b$, is $a^2 > b^2$?
math.stackexchange.com
19
Prove every odd integer is the difference of two squares
math.stackexchange.com
12
Proof of the formula for Euler's totient function
math.stackexchange.com
11
How to show that $\frac{x^2}{x-1}$ simplifies to $x + \frac{1}{x-1} +1$
math.stackexchange.com
10
Basic algebra but can't get answer that fits
math.stackexchange.com
10
How to find number of prime numbers up to to N?
math.stackexchange.com
10
The value of the polynomial at given point.
math.stackexchange.com
8
Why does a number like $2^n\bmod 7$ have a repeating pattern?
math.stackexchange.com
8
How can I prove that $xy\leq x^2+y^2$?
math.stackexchange.com
8
Is writing 2K13 technically correct?
math.stackexchange.com
8
With the binomial expansion of $ (3+x)^4$ express $(3 - \sqrt 2)^4$ in the form of $p+q\sqrt 2$
math.stackexchange.com
7
Studying Math, All Over Again
math.stackexchange.com
6
Trigonometry Table Problem
math.stackexchange.com
6
How to show $x^4 - 1296 = (x^3-6x^2+36x-216)(x+6)$
math.stackexchange.com
6
Prove $\sum _{k=2}^{n} k(k-1) {n \choose k}=n(n-1)2^{n-2}$
math.stackexchange.com
5
Concept question.
math.stackexchange.com
5
Distribution of five people in a car where exactly two can drive
math.stackexchange.com
5
Show that the sequence $\sqrt{2},\sqrt{2\sqrt{2}},\sqrt{2\sqrt{2\sqrt{2}}},...$ converges and find its limit.
math.stackexchange.com
5
True or false? $x^2\ne x\implies x\ne 1$
math.stackexchange.com
5
Are semicolons mandatory in a non-bulleted list after a colon?
english.stackexchange.com
5
Intuitive meaning of factor 2 in formula of vertical throw max height $h=v^2/2g$
physics.stackexchange.com
5
Is "Bunch of people" a valid phrase?
ell.stackexchange.com
5
Use "woman" or "person" for female version of "how to be a good man"?
ell.stackexchange.com
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