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- 18:06, 13 January 2020 (diff | hist) . . (+15) . . 2006 SMT/General Problems/Problem 10 (→Solution)
- 18:06, 13 January 2020 (diff | hist) . . (+316) . . 2006 SMT/General Problems/Problem 10 (→Solution)
- 17:59, 13 January 2020 (diff | hist) . . (-567) . . 2006 SMT/General Problems/Problem 10 (→Solution) (Tag: Replaced)
- 17:58, 13 January 2020 (diff | hist) . . (+579) . . N 2006 SMT/General Problems/Problem 10 (Created page with "==Solution== First of all, lets note that the sum of all positive integers from <math>1</math> to <math>n</math> inclusive is <math>\frac{n(n+1)}{2}</math>. The sum of all nu...")
- 17:42, 13 January 2020 (diff | hist) . . (+1,227) . . N 2006 SMT/General Problems/Problem 8 (Created page with "==Solution== Assuming all the numbers are positive, lets denote the five numbers as <math>a_0,a_1,a_2,a_3,a_4</math>. Assume WLOG that <math>a_0 \ge a_1 \ge a_2 \ge a_3 \ge a...")
- 16:55, 13 January 2020 (diff | hist) . . (+754) . . N 2013 PMWC Problems/Problem I15 (Created page with "==Solution== First of all, note that <math>M=\sum_{n=1}^\infty \frac{1}{k^2}</math>, and that <math>K=\sum_{n=1}^\infty \frac{1}{(2k-1)^2}</math> Splitting <math>M</math> in...") (current)
- 16:02, 13 January 2020 (diff | hist) . . (+2,801) . . N 2006 iTest Problems/Problem 37 (Created page with "==Solution== To begin, let's number the equations as follows <cmath>\begin{align} x^2 + xy + y^2 &= 1 \\ y^2 + yz +z^2 &= 2 \\ z^2 + zx +x^2 &= 3 \end{align}</cmath> In or...")
- 16:02, 13 January 2020 (diff | hist) . . (-2,802) . . 2006 iTest Problems (→Solution)
- 16:01, 13 January 2020 (diff | hist) . . (+2,803) . . 2006 iTest Problems (→Problem 37)
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