12 May 2015

• 11:1111:11, 12 May 2015 diff hist +670 2015 USAMO Problems/Problem 2 No edit summary
• 11:1011:10, 12 May 2015 diff hist −919 2015 USAMO Problems/Problem 1 No edit summary
• 11:1011:10, 12 May 2015 diff hist −732 2015 USAMO Problems →Day 2
• 11:0911:09, 12 May 2015 diff hist −427 2015 USAMO Problems Changed problems from JMO to AMO
• 11:0711:07, 12 May 2015 diff hist +855 N 2015 USAJMO Problems/Problem 4 Created page with "===Problem=== Find all functions <math>f:\mathbb{Q}\rightarrow\mathbb{Q}</math> such that<cmath>f(x)+f(t)=f(y)+f(z)</cmath>for all rational numbers <math>x<y<z<t</math> that f..."
• 11:0711:07, 12 May 2015 diff hist +1,677 N 2015 USAJMO Problems/Problem 3 Created page with "===Problem=== Quadrilateral <math>APBQ</math> is inscribed in circle <math>\omega</math> with <math>\angle P = \angle Q = 90^{\circ}</math> and <math>AP = AQ < BP</math>. Let ..."
• 11:0711:07, 12 May 2015 diff hist +1,007 N 2015 USAJMO Problems/Problem 2 Created page with "===Problem=== Solve in integers the equation <cmath> x^2+xy+y^2 = \left(\frac{x+y}{3}+1\right)^3. </cmath> ===Solution=== We first notice that both sides must be integers, so ..."
• 11:0611:06, 12 May 2015 diff hist +1,926 N 2015 USAJMO Problems/Problem 1 Copied page from 2015 USAMO problem 1
• 11:0511:05, 12 May 2015 diff hist +5 2015 USAJMO Problems Changed hyperlinks
• 11:0511:05, 12 May 2015 diff hist +1 2015 USAJMO Problems →Problem 1
• 11:0411:04, 12 May 2015 diff hist +3,221 N 2015 USAJMO Problems Created page with "==Day 1== ===Problem 1=== Given a sequence of real numbers, a move consists of choosing two terms and replacing each with their arithmetic mean. Show that there exists a seque..."