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  • ...let <math>D</math> be the reflection of <math>C</math> across the x-axis, and let <math>E</math> be the reflection of <math>D</math> across the y-axis. T == Solutions ==
    4 KB (735 words) - 13:31, 22 October 2024
  • ...l similarity is a plane transformation composed of a rotation of the plane and a dilation of the plane having the common center. The order in which the c ...ranslation or by a spiral similarity (directly similar figures are similar and have the same orientation).
    28 KB (4,853 words) - 22:23, 19 November 2024
  • ...h> , where <math>a</math>, <math>b</math>, <math>c</math>, <math>d</math>, and <math>e</math> are positive integers. Find <math>a + b + c + d + e</math>. ==Solution 1==
    8 KB (1,307 words) - 16:05, 20 November 2024
  • draw((0,4)--(3,1)--(3,3)); draw((1,1)--(2,0)--(4,2));
    1 KB (155 words) - 23:16, 30 March 2015
  • ...math>z</math> are within 1 unit of each other is greater than <math>\frac {1}{2}</math>. What is the smallest possible value of <math>n</math>? ==Solution 1==
    13 KB (2,131 words) - 16:24, 11 October 2024
  • ...dicate the year when the problem was used, the variant option of the exam, and the number of the problem. <cmath>\left\{\begin{array}{l} 2 x^2 + 4xy + 11 y^2 \le 1,\4x + 7y \ge 3.\end{array}\right.</cmath>
    48 KB (8,214 words) - 07:59, 30 July 2024
  • ...iad for high school students. It consists of two rounds – correspondence and final. The correspondence round lasts 3 months. ...ng contains the year of the Olympiad and the serial number of the problem. Solutions are often different from the original ones.
    46 KB (7,965 words) - 14:29, 17 November 2024