MATH-KAL

Equations and inequalities of the Second Degree

Operations on radicals • Simple equations • Complete equations • The discriminant • Quadratic inequalities more...

Equations and Systems with Two Variables

Equations with two variables • Solving a system graphically • The substitution method • The addition method • Proportional numbers • Dependent and inconsistent systems more...

Quadratic System and Parameters

Solving quadratic systems • Graphical meaning of the solution • Solving a linear equation with one parameter • Solving an equation with one parameter • Solving a system with one parameter more..

Sequences

Explicit definition • The general term • Recursive definition • Arithmetic and geometric progression • Exponential growth and decay more...