Mathematics
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Element118
  • Member for 6 years, 7 months
  • Last seen this week
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Apparently, this user prefers to keep an air of mystery about them.

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All Questions Answers
Score Newest
answer
15
When is $\displaystyle\sum_{i=1}^n a_i^{-2}=1$?
Jun 20, 2016
answer
11
Find $a,b$ for which $xyz+z=a,\quad xyz^2+z=b,\quad x^2+y^2+z^2=4$ has unique solution
Dec 30, 2015
question
7
Maximising shortest path passing through $n$ points inside a bounded region
Oct 26, 2015
answer
6
How do you derive the formula of $\sin (a+b)$ from $\cos(a+b)=\cos(a)\cos(b)-\sin(a)\sin(b)$
Nov 14, 2015
answer
6
What is the remainder when $1^6 + 2^6 + 3^6 + ... + 99^6 + 100^6$ is divided by 5?
Nov 18, 2015
question
5
Picking random integers $a_i$ until the $\gcd(a_1,a_2,\dots,a_n)$ is 1
Oct 11, 2015
question
5
What numbers are possible for the fractional chromatic numbers?
Nov 3, 2021
answer
5
The number of real roots of the equation $1+a_1x+a_2x^2+.....+a_nx^n=0$ where $|x|<\frac{1}{3}$ and $|a_i|<2 \forall i=1,2,3....,n$ is
Dec 27, 2015
answer
5
Find $\lim_{n\to \infty}r_n$ and $\lim_{n\to \infty}s_n$
Dec 30, 2015
answer
4
Find expected value of a dice experiment
Dec 30, 2015
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72
What was my wife trying to say?
17
Mathematical rebus: a quote
11
Rearrangement Inequality
11
Correct way to add 22 to 4 to get 9999
9
The answer is in your face

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