In mathematics education, #precalculus or college algebra is a course, or a set of courses, that includes algebra and trigonometry at a level which is designed to prepare students for the study of calculus. Schools often distinguish between algebra and trigonometry as two separate parts of the coursework. ⭐ Table of Contents ⭐ ⌨️ (0:00:00) The real number system ⌨️ (0:08:24) Order of operations ⌨️ (0:16:31) Interval notation ⌨️ (0:24:19) Union and intersection ⌨️ (0:30:36) Absolute value ⌨️ (0:38:16) Absolute value inequalities ⌨️ (0:46:38) Fraction addition ⌨️ (0:55:06) Fraction multiplication ⌨️ (1:02:16) Fraction devision ⌨️ (1:10:46) Exponents ⌨️ (1:34:40) Lines ⌨️ (1:43:44) Expanding ⌨️ (1:52:00) Pascal's review ⌨️ (1:59:14) Polynomial terminology ⌨️ (2:08:22) Factors and roots ⌨️ (2:17:50) Factoring quadratics ⌨️ (2:28:54) Factoring formulas ⌨️ (2:37:30) Factoring by grouping ⌨️ (2:43:52) Polynomial inequalities ⌨️ (2:52:57) Rational expressions ⌨️ (3:00:12) Functions - introduction ⌨️ (3:04:05) Functions - Definition ⌨️ (3:10:08) Functions - examples ⌨️ (3:19:05) Functions - notation ⌨️ (3:27:21) Functions - Domain ⌨️ (3:34:43) Functions - Graph basics ⌨️ (3:44:33) Functions - arithmetic ⌨️ (3:53:00) Functions - composition ⌨️ (4:03:40) Fucntions - inverses ⌨️ (4:17:32) Functions - Exponential definition ⌨️ (4:27:25) Functions - Exponential properties ⌨️ (4:35:55) Functions - logarithm definition ⌨️ (4:44:00) Functions - logarithm properties ⌨️ (4:53:21) Functions - logarithm change of base ⌨️ (4:59:31) Functions - logarithm examples ⌨️ (5:09:29) Graphs polynomials ⌨️ (5:20:14) Graph rational ⌨️ (5:39:32) Graphs - common expamples ⌨️ (5:50:36) Graphs - transformations ⌨️ (5:58:37) Graphs of trigonometry function ⌨️ (6:08:20) Trigonometry - Triangles ⌨️ (6:16:04) Trigonometry - unit circle ⌨️ (6:25:14) Trigonometry - Radians ⌨️ (6:34:10) Trigonometry - Special angles ⌨️ (6:43:56) Trigonometry - The six functions ⌨️ (6:51:19) Trigonometry - Basic identities ⌨️ (6:57:15) Trigonometry - Derived identities