# User contributions

- 14:23, 7 March 2018
(diff | hist) . .
**(-2,176)** . . AIME Problems and Solutions - 23:12, 8 October 2017
(diff | hist) . .
**(-752)** . . 2017 AMC 10A Problems/Problem 23 - 22:54, 7 September 2017 (diff | hist) . . (+437) . . 2017 AIME II Problems/Problem 6
- 20:11, 22 October 2016 (diff | hist) . . (+43) . . Illinois Mathcounts (→IL State Team Champions)
- 09:44, 20 September 2016 (diff | hist) . . (+1) . . Descartes Rule of Signs (current)
- 19:26, 27 August 2016 (diff | hist) . . (-9) . . Fermat's Little Theorem (→Statement)
- 19:22, 27 August 2016 (diff | hist) . . (-2) . . Pell equation
- 18:22, 27 August 2016 (diff | hist) . . (+3) . . Pell equation
- 22:05, 26 August 2016 (diff | hist) . . (+289) . . 1987 AHSME Problems/Problem 15 (→Problem)
- 18:11, 26 August 2016 (diff | hist) . . (+306) . . 1987 AJHSME Problems/Problem 18 (→Solution) (current)
- 15:15, 16 July 2016 (diff | hist) . . (+13) . . 1992 AHSME Problems (→Problem 13)
- 14:10, 6 July 2016 (diff | hist) . . (+2) . . 1977 AHSME Problems/Problem 24 (→Solution) (current)
- 14:09, 6 July 2016 (diff | hist) . . (+36) . . 1977 AHSME Problems/Problem 24 (→Solution)
- 14:09, 6 July 2016 (diff | hist) . . (+29) . . 1977 AHSME Problems/Problem 24 (→Solution)
- 14:07, 6 July 2016 (diff | hist) . . (+174) . . N 1977 AHSME Problems/Problem 24 (Created page with "==Solution== Note that <math>\frac{1}{(2n-1)(2n+1)} = \frac{1/(2n-1)-1/(2n+1)}{2}</math>. Indeed, we find the series telescopes and is equal to <math>1-\frac{1}{257}</math>.")
- 14:01, 6 July 2016 (diff | hist) . . (+16) . . 1979 AHSME Problems/Problem 2 (→Solution)
- 20:42, 2 July 2016 (diff | hist) . . (+1) . . 2016 AMC 12B Problems/Problem 12 (→Problem)
- 10:56, 10 June 2016 (diff | hist) . . (+443) . . N 1972 AHSME Problems/Problem 19 (Created page with "==Solution== We begin by evaluating the sum of the first <math>n</math> terms of the sequence with <math>1</math>, <math>2</math>, and <math>3</math>. We find that the sum of...") (current)
- 10:16, 10 June 2016 (diff | hist) . . (+429) . . N 1965 AHSME Problems/Problem 20 (Created page with "In order to calculate the <math>r</math>th term of this arithmetic sequence, we can subtract the sum of the first <math>r-1</math> terms from the sum of the first <math>r</mat...")
- 10:12, 10 June 2016 (diff | hist) . . (+298) . . N 1965 AHSME Problems/Problem 15 (Created page with "We begin by converting both <math>25_b</math> and <math>52_b</math> to base <math>10</math>. <math>25_b = 2b+5</math> in base <math>10</math> and <math>52_b = 5b+2</math> base...") (current)
- 11:26, 9 June 2016 (diff | hist) . . (+115) . . N 1982 AHSME Problems/Problem 3 (Created page with "Plugging in <math>2</math> as <math>x</math> results in <math>4^4</math>, which is merely <math>\boxed{256}</math>.")
- 10:50, 9 June 2016 (diff | hist) . . (+420) . . N 1979 AHSME Problems/Problem 2 (Created page with "==Solution== Moving all variables to one side of the equation, we can use Simon's Favorite Factoring Trick to factor the equation into <cmath>(x+1)(y-1) = -1</cmath> Plugging...")
- 10:39, 9 June 2016 (diff | hist) . . (+14) . . 1982 AHSME Problems/Problem 17 (current)
- 10:39, 9 June 2016 (diff | hist) . . (+353) . . N 1982 AHSME Problems/Problem 17 (Created page with "Let <math>a = 3^x</math>. Then the preceding equation can be expressed as the quadratic, <cmath>9a^2-28a+3 = 0</cmath> Solving the quadratic yields the roots <math>3</math> an...")
- 19:58, 8 June 2016
(diff | hist) . .
**(+754)** . . 1988 AHSME Problems/Problem 21 (→Solution) (current)