• Text tasks

    Basic theoretical information Types of numbers To the table of contents … Natural numbers are numbers used to count objects. Natural numbers…

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  • Stereometry (Geometry in space)

    Basic theorems, axioms and definitions of stereometry Introductory definitions and axioms of stereometry Some definitions are: A polyhedron is a geometric…

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  • Planimetry (plane geometry)

    Basic theoretical information Triangle When solving problems in geometry, in addition to all the geometric formulas and properties that will…

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  • Progression

    Basic theoretical information Arithmetic progression Formula  nth member arithmetic progression: The ratio between the three neighboring members of the arithmetic progression: The…

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  • Functions and graphics

    Basic theoretical information Coordinates and basic concepts of functions The length of the segment on the coordinate axis is the…

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