Mathematics
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trombho
  • Member for 2 years, 11 months
  • Last seen more than a month ago
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115
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All Questions Answers
Score Newest
question
7
Conjecture: There is no $n\neq3$ such that $\arctan(1)+\arctan(2)+\cdots+\arctan(n)=\frac{k\pi}{2}$, with $k$ integer.
Sep 16, 2019
question
5
Area triangle (possible)
Nov 15, 2019
question
5
Calculate the value of angle $ACB$
Dec 20, 2019
question
4
Midpoints, bisectors, orthocenter, incenter and circumcenter
Nov 4, 2019
question
4
Greatest prime divisor of $ n^2+1$
Oct 8, 2019
question
4
Number primes digits
Oct 8, 2019
question
3
Find all integers
Sep 20, 2019
question
3
Numeric combination
Nov 17, 2019
question
2
Inequality with 5 cyclic variables
Nov 17, 2019
question
2
Mansion point and incenter
Nov 16, 2019

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