User contributions
- 20:40, 19 September 2024 (diff | hist) . . (+2,149) . . N 2009 Indonesia MO Problems/Problem 7 (Created page with "==Solution== Since <math>\gcd(a, b) = 1</math>, by Bézout's Identity, there exists integers <math>x</math> and <math>y</math> such that <math>ax+by=1</math>. Since <mat...") (current)
- 12:37, 18 September 2024 (diff | hist) . . (+5) . . 2009 Indonesia MO Problems/Problem 4 (→Solution) (current)
- 12:32, 18 September 2024 (diff | hist) . . (+43) . . 2009 Indonesia MO Problems/Problem 4 (→Solution)
- 10:17, 18 September 2024 (diff | hist) . . (-13) . . 2009 Indonesia MO Problems/Problem 4 (→Solution)
- 10:15, 18 September 2024 (diff | hist) . . (+2,315) . . N 2009 Indonesia MO Problems/Problem 4 (Created page with "==Solution== Suppose that among the 7 vertices, each has a degree of 3. Then the total amount of edges will be <math>\frac{7\cdot 3}{2}</math>, which isn't an integer. Theref...")
- 21:59, 17 September 2024 (diff | hist) . . (-1) . . 2009 Indonesia MO Problems/Problem 3 (→Solution (credit to Moonmathpi496)) (current)
- 21:58, 17 September 2024 (diff | hist) . . (+4) . . 2009 Indonesia MO Problems/Problem 3 (→Solution (credit to Moonmathpi496))
- 21:57, 17 September 2024 (diff | hist) . . (-233) . . 2009 Indonesia MO Problems/Problem 3 (→Solution (credit to Moonmathpi496))
- 21:56, 17 September 2024 (diff | hist) . . (+2,251) . . N 2009 Indonesia MO Problems/Problem 3 (Created page with "==Solution (credit to Moonmathpi496)== Since <math>AG = \tfrac23 \cdot AM</math>, lengths on <math>\triangle AB'G</math> and <math>\triangle AGC'</math> are <math>\tfrac23</m...")
- 15:19, 17 September 2024 (diff | hist) . . (-9) . . 2008 Indonesia MO Problems/Problem 8 (→Solution 1) (current)
- 15:18, 17 September 2024 (diff | hist) . . (-81) . . 2008 Indonesia MO Problems/Problem 8 (→Solution 1)
- 15:16, 17 September 2024 (diff | hist) . . (0) . . 2008 Indonesia MO Problems/Problem 8 (→Solution 1)
- 15:11, 17 September 2024 (diff | hist) . . (+37) . . 2008 Indonesia MO Problems/Problem 8 (→Solution 1)
- 15:09, 17 September 2024 (diff | hist) . . (+49) . . 2008 Indonesia MO Problems/Problem 8 (→Solution 1)
- 14:21, 17 September 2024 (diff | hist) . . (+2,599) . . N 2008 Indonesia MO Problems/Problem 8 (Created page with "==Solution 1== Since <math>f: \mathbb{N}\rightarrow\mathbb{N}</math>, we know that <math>f(n)\ge 1</math>. Let <math>m</math>, <math>n</math> be <math>1</math>, <math>2</ma...")
- 12:10, 17 September 2024 (diff | hist) . . (+74) . . 2008 Indonesia MO Problems/Problem 3 (→Solution 1) (current)
- 10:16, 17 September 2024 (diff | hist) . . (+2,781) . . N 2008 Indonesia MO Problems/Problem 3 (Created page with "==Solution 1== Summing up the equation <math>\frac{a+b}{c}+\frac{b+c}{a}+\frac{c+a}{b}</math> yields the result <math>\frac{a^2b+ab^2+b^2c+bc^2+c^2a+ca^2}{abc}=z\in \mathbb...")
- 22:40, 13 September 2024 (diff | hist) . . (+787) . . 2005 Indonesia MO Problems/Problem 5 (→See Also) (current)
- 19:57, 13 September 2024 (diff | hist) . . (+13) . . 2004 Indonesia MO Problems/Problem 8 (→Solution) (current)
- 19:55, 13 September 2024 (diff | hist) . . (+1,294) . . 2004 Indonesia MO Problems/Problem 8 (→Solution)
- 14:37, 13 September 2024 (diff | hist) . . (+682) . . 2004 Indonesia MO Problems/Problem 7 (→See Also) (current)
