Shakhno. Collection of problems in elementary mathematics increased complexity

Shakhno. Collection of problems in elementary mathematics increased complexity. 2nd ed. 1965.526 pages djvu. 10.3 MB.
Collection contains more than a thousand problems in elementary mathematics, mainly the increased difficulty. Problem, if possible, and provided with a systematic solutions. In some cases, due to the solution of the problem and, where appropriate, are the questions of the theory. Sometimes they are preceded by the decision of the task group, united by a common idea. Clarifications on the theory of equivalence of equations, graphing, complex numbers, inverse trigonometric functions, mathematical induction, and some other issues. The collection is designed for persons who have graduated from high school and want to continue to improve in the problem-solving methods or prepared in high school. It can serve as an additional tool to the teacher in the classroom for individual assignments for students especially interested in mathematics, students of pedagogical institutes.
LINK1-PDF FILE
https://www.mediafire.com/?pmri9633327gigx
LINK2-DJVU FILE
http://www.ph4s.ru/abitur/mat_zad/SHahno.rar