こちらは数学a, b, c 又は 1, 2, 3のいずれに分類されますか？ a. Number sets: natural numbers, integers, rational, real and complex numbers. b. Algebraic expressions: polynomials, rational functions, exponentiation by an exponent that is a rational number. c. Equations: linear and quadratic equations, equations containing rational powers, logarithmic, exponential and goniometric equations, equations containing an absolute value. d. Inequations: linear and quadratic inequations, inequations containing rational powers or an absolute value, goniometric inequations. e. Systems of linear equations and inequations. f. Functions: linear, quadratic, goniometric and exponential functions, logarithms and powers. Domain of a function and basic properties (periodicity, monotonicity, etc.). g. Arithmetic and geometric sequences and its sums. h. Analytic geometry: coordinate systems, points, vectors, equations for planes and straight lines, angles, scalar products. i. Combinatorics and basic probability: permutations and combinations, binomial theorem. j. Mathematical logic: validity of declarative statements, deductive reasoning. k. General study aptitude.