Vectors, coordinate geometry, trigonometry (0–180°), circumscribed circles. Sequences, quadratic functions, systems of equations.
The "Reshebnik" (solution book) for the series by L. S. Fedchenko is designed as a universal, multi-level resource to support students through the core middle-school math curriculum. It is often used alongside the "Universal Multi-level Problem Book" to provide worked-out solutions and pedagogical guidance. Key Features reshebnik po algebre geometrii 7-9 klass fedchenko
: Problems are categorized into three levels (A, B, and C) to allow for differentiated learning: circumscribed circles. Sequences