# User contributions

- 12:11, 12 May 2015
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**(+670)** . . 2015 USAMO Problems/Problem 2 - 12:10, 12 May 2015
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**(-919)** . . 2015 USAMO Problems/Problem 1 - 12:10, 12 May 2015
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**(-732)** . . 2015 USAMO Problems (→Day 2) - 12:09, 12 May 2015 (diff | hist) . . (-427) . . 2015 USAMO Problems (Changed problems from JMO to AMO)
- 12:07, 12 May 2015
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**(+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...") - 12:07, 12 May 2015
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**(+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 ...") - 12:07, 12 May 2015
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**(+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 ...") - 12:06, 12 May 2015
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**(+1,926)** . . N 2015 USAJMO Problems/Problem 1 (Copied page from 2015 USAMO problem 1) - 12:05, 12 May 2015 (diff | hist) . . (+5) . . 2015 USAJMO Problems (Changed hyperlinks)
- 12:05, 12 May 2015 (diff | hist) . . (+1) . . 2015 USAJMO Problems (→Problem 1)
- 12:04, 12 May 2015
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**(+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...")