#### Section 1 : Math l Trigonometry l Precalculus

 Lecture 1 Trigonometry Precalculus Course l Best course online 1:25 Lecture 2 Angles l Naming Angles l Best Trigonometry Precalculus Course 8:24 Lecture 3 Angles l Complementary l supplementary angles l Trigonometry l Precalculus 5:3 Lecture 4 Angles l Positive and negative angles l Trigonometry l Precalculus 5:19 Lecture 5 Angles l Quadrant of the angle l Trigonometry l Precalculus 13:16 Lecture 6 Angles l Degrees l radians l DMS l Easy Trigonometry l Precalculus 15:11 Lecture 7 Angles l Conterminal angles l Easy Trigonometry l Precalculus 9:21 Lecture 8 The six trig function l Sine l cosine l tangent l Trigonometry l Precalculus 10:52 Lecture 9 The six trig function l Cosecant l secant l cotangent l reciprocal identity 7:40 Lecture 10 The six trig function l The quotient identities l Trigonometry l Precalculus 9:8 Lecture 11 The six trig functions l Pythagorean identities l Trigonometry l Precalculus 17:1 Lecture 12 The six trig functions l Signs by quadrant l Trigonometry l Precalculus 10:39 Lecture 13 The six trig functions l When the trig function undefined l Trigonometry 6:49 Lecture 14 The unit circle l Trigonometry l Precalculus 13:27 Lecture 15 The unit circle l Negative angles and angles more than one rotation 10:23 Lecture 16 The unit circle l Conterminal angles in a particular interval 11:36 Lecture 17 The unit circle l Reference angles 8:38 Lecture 18 The unit circle l Symmetry across axes 8:8 Lecture 19 The unit circle l Even odd identities 12:14 Lecture 20 The unit circle l The set of all possible angles 10:27 Lecture 21 The unit circle l Points not on the unit circle 12:45 Lecture 22 The unit circle l Solving right triangle l best trigonometry classes 7:43 Lecture 23 Trigonometry Classes l The unit circle l Angles of elevation and depression 10:29 Lecture 24 Trigonometry Classes l Angles in circles l Radians and arc length 6:11 Lecture 25 Precalculus Lectures l Angles in circles l Area of a circular sector 7:50 Lecture 26 Angles in circles l Trig functions of real numbers 4:45 Lecture 27 Best Trigonometry Classes l Angles in circles l Linear and angular velocity 7:16 Lecture 28 Angles in circles l Relating linear and angular velocity 8:9 Lecture 29 Graphing the trig functions l Sketching sine and cosine 16:55 Lecture 30 Graphing the trig functions l Sketching cosecant and secant 6:4 Lecture 31 Graphing the trig functions l Period and amplitude 14:29 Lecture 32 Graphing the trig functions l Sketching tangent and cotangent 10:24 Lecture 33 Graphing the trig functions l Horizontal and vertical shifts 10:46 Lecture 34 Graphing the trig functions l Graphing transformations 14:45 Lecture 35 Graphing the trig functions l Graphing combinations 7:42 Lecture 36 Inverse trig functions l Inverse trig relations 9:52 Lecture 37 Trigonometry Classes l what are Inverse trig functions 8:3 Lecture 38 Trig functions of inverse trig functions l Best Trigonometry videos 8:7 Lecture 39 Trig identities l Sum difference identities for sine and cosine 5:43 Lecture 40 What are Trig identities l Cofunction identities 5:43 Lecture 41 Trig identities l Sum difference identities for tangent 4:7 Lecture 42 Trig identities l Double angle identities 9:19 Lecture 43 Trigonometry Lectures l Trig identities l Half angle identities Lecture 44 Trig identities l Product to sum identities 6:14 Lecture 45 Trig identities l Free Trigonometry Classes l Sum to product identities 6:37 Lecture 46 Trig identities l Proving the trig equation 13:47 Lecture 47 Trig identities l Complete solution set of the equation 7:38 Lecture 48 The law of sines and law of cosines l Law of sines 9:52 Lecture 49 The law of sines and law of cosines l The ambiguous case of the law of sines 12:4 Lecture 50 The law of sines and law of cosines l Area from the law of sines 7:32 Lecture 51 The law of sines and law of cosines l Law of cosines l Best Trigonometry Classes 13:39 Lecture 52 The law of sines and law of cosines l Heron's formula 3:9 Lecture 53 The law of sines and law of cosines l Polar equation of an elliptical conic section 4:2 Lecture 54 Polar coordinates l Converting polar coordinates to rectangular l Trigonometry Classes 4:14 Lecture 55 Polar coordinates l Converting rectangular coordinates to polar 5:21 Lecture 56 Polar coordinates l Express the polar point multiple ways 6:38 Lecture 57 Polar coordinates l Converting equations from polar to rectangular 3:38 Lecture 58 Polar coordinates l Converting equations from rectangular to polar Lecture 59 Graphing polar curves l Graph the polar curve l circle 5:46 Lecture 60 Graphing polar curves l Best Trigonometry Classes 8:58 Lecture 61 Graphing polar curves l cardioid l Best Trigonometry Classes 6:8 Lecture 62 Graphing polar curves l limacon l Best Teaching Bharat Classes 7:41 Lecture 63 Graphing polar curves l lemniscate l Best Trigonometry classes 12:8 Lecture 64 Graphing polar curves l Intersection points of the polar curves 9:9 Lecture 65 Graphing polar curves l Graph the polar region in the xy plane 7:17 Lecture 66 Parametric curves l Sketching a parametric curve and its orientation 10:53 Lecture 67 Parametric curves l Write the equation as a parametric curve 6:34 Lecture 68 Analytic geometry l Graph of a single point or of no points 4:13 Lecture 69 Analytic geometry l Set of points equally distant from two points 6:35 Lecture 70 Analytic geometry l Set of points unequally distant from two points 9:40 Lecture 71 Analytic geometry l Eccentricity and directrix of the conic section 9:32 Lecture 72 Analytic geometry l Vertex, axis l focus l directrix of parabola l Trigonometry Classes 11:21 Lecture 73 Analytic geometry l Equation of a parabolic conic section 3:52 Lecture 74 Analytic geometry l Polar equation of a parabolic conic section Lecture 75 Analytic geometry l Vertex l axis l focus l directrix of an ellipse 13:30 Lecture 76 Analytic geometry l Equation of an elliptical conic section 5:38 Lecture 77 Analytic geometry l Vertex, axis, focus, directrix of a hyperbola 14:48 Lecture 78 Complex numbers l Equation of a hyperbolic conic section 6:53 Lecture 79 Complex numbers l Polar equation of a hyperbolic conic section 3:17 Lecture 80 Complex numbers l Hyperbolic identities 4:57 Lecture 81 Complex numbers l Best Trigonometry lectures 9:41 Lecture 82 Complex numbers l Complex number operations 14:44 Lecture 83 Complex numbers l Graphing complex numbers 5:4 Lecture 84 Complex numbers l Distances and midpoints 10:37 Lecture 85 Complex numbers l Complex numbers in polar form 10:2 Lecture 86 Complex numbers l Multiplying and dividing polar forms Lecture 87 Complex numbers l Powers of complex numbers and De Moivre's theorem 7:44 Lecture 88 Complex numbers l Complex number equations l Best Trigonometry classes 12:46 Lecture 89 Complex numbers l Roots of complex numbers l Trigonometry l Precalculus 11:39 Lecture 90 Matrices l Matrix dimensions and entries 6:4 Lecture 91 Matrices l Representing systems with matrices 9:52 Lecture 92 Matrices l Simple row operations l Best Trigonometry Classes 8:15 Lecture 93 Matrices l Gauss Jordan elimination and reduced row echelon form 18:32 Lecture 94 Matrices l Matrix addition and subtraction Lecture 95 Matrices l Scalar multiplication and zero matrices 7:58 Lecture 96 Matrices l Matrix multiplication 14:0 Lecture 97 Matrices l Identity matrices 9:48 Lecture 98 Matrices l Transformations 10:16 Lecture 99 Matrices l Matrix inverses l invertible and singular matrices 12:2 Lecture 100 Matrices l Solving systems with inverse matrices 10:47 Lecture 101 Matrices l Solving systems with Cramer's rule 5:32