The idea of a set, operations on sets, Venn charts. De Morgan laws. Cartesian item, connection, comparability connection. Representation of genuine numbers on a line. Complex numbers – essential properties, modulus, contention, 3D shape foundations of solidarity. The parallel arrangement of numbers. Change of a number in decimal framework to double framework and the other way around. Number juggling, Geometric and Harmonic movements. Quadratic mathematical statements with genuine coefficients. Arrangement of straight inequations of two variables by charts. Stage and Combination. Binomial hypothesis and its application. Logarithms and their applications.