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  1. 1 3:16 Intro to Precalculus (Precalculus – College Algebra 1) Professor Leonard · 1M views
  2. 2 41:45 Introduction to Functions (Precalculus – College Algebra 2) Professor Leonard · 661.4K views
  3. 3 50:29 How to Evaluate Functions (Precalculus – College Algebra 3) Professor Leonard · 317.5K views
  4. 4 40:51 Finding the Domain of Functions (Precalculus – College Algebra 4) Professor Leonard · 269.4K views
  5. 5 22:16 Operations of Functions (Precalculus – College Algebra 5) Professor Leonard · 150.5K views
  6. 6 11:52 Using the Vertical Line Test (Precalculus – College Algebra 6) Professor Leonard · 98.4K views
  7. 7 49:23 Features of Graphs, Domain, Range (Precalculus – College Algebra 7) Professor Leonard · 145.7K views
  8. 8 29:08 Properties of Functions – Even vs Odd (Precalculus – College Algebra 8) Professor Leonard · 136.4K views
  9. 9 15:15 Properties of Functions – Increasing vs Decreasing (Precalculus – College Algebra 9) Professor Leonard · 101.7K views
  10. 10 26:22 Properties of Functions – Extrema (Precalculus – College Algebra 10) Professor Leonard · 93.4K views
  11. 11 10:32 Average Rate of Change of a Function (Precalculus – College Algebra 11) Professor Leonard · 114.9K views
  12. 12 45:29 How to Graph Piecewise Functions (Precalculus – College Algebra 12) Professor Leonard · 137K views
  13. 13 19:11 Graphs You Must Know (Precalculus – College Algebra 13) Professor Leonard · 108K views
  14. 14 48:01 Introduction to Graph Transformations (Precalculus – College Algebra 14) Professor Leonard · 214.8K views
  15. 15 33:09 How to Graph with Transformations (Precalculus – College Algebra 15) Professor Leonard · 94.2K views
  16. 16 12:34 Introduction to Solving Quadratics (Precalculus – College Algebra 16) Professor Leonard · 75.3K views
  17. 17 44:27 The Square Root Method in Solving Quadratics (Precalculus – College Algebra 17) Professor Leonard · 72.2K views
  18. 18 55:48 Using Factoring to Solve Quadratics (Precalculus – College Algebra 18) Professor Leonard · 82.9K views
  19. 19 1:01:26 Completing the Square Made Easy (Precalculus – College Algebra 19) Professor Leonard · 90.3K views
  20. 20 19:08 Proving the Quadratic Formula – Twice (Precalculus – College Algebra 20) Professor Leonard · 46.8K views
  21. 21 46:04 Using the Quadratic Formula (Precalculus – College Algebra 21) Professor Leonard · 46.9K views
  22. 22 19:51 Finding Intersections of Functions (Precaluclus – College Algebra 22) Professor Leonard · 78.9K views
  23. 23 47:53 Using Substitutions to Solve Equations (Precalculus – College Algebra 23) Professor Leonard · 54.8K views
  24. 24 54:57 Graphing Quadratic Functions (Precalculus – College Algebra 24) Professor Leonard · 67.7K views
  25. 25 37:25 Solving Quadratic Inequalities (Precalculus – College Algebra 25) Professor Leonard · 56.1K views
  26. 26 26:04 Applications of Quadratic Functions (Precalculus – College Algebra 26) Professor Leonard · 41.6K views
  27. 27 34:36 Introduction to Polynomial Functions (Precalculus – College Algebra 27) Professor Leonard · 146.9K views
  28. 28 32:00 Power Functions (Precalculus – College Algebra 28) Professor Leonard · 101.4K views
  29. 29 37:44 Multiplicity and End Behavior of Polynomials (Precalculus – College Algebra 29) Professor Leonard · 61.6K views
  30. 30 58:08 Creating Polynomials from Real Zeros (Precalculus – College Algebra 30) Professor Leonard · 49K views
  31. 31 1:04:05 How to Sketch Polynomial Functions (Precalculus – College Algebra 31) Professor Leonard · 52.9K views
  32. 32 52:49 Synthetic Division and Long Division of Polynomials (Precalculus – College Algebra 32) Professor Leonard · 60.6K views
  33. 33 30:37 Descartes Rule of Signs (Precalculus – College Algebra 33) Professor Leonard · 47K views
  34. 34 1:21:10 How to Use the Rational Zeros Theorem (Precalculus – College Algebra 34) Professor Leonard · 61.9K views
  35. 35 17:32 Introduction to Complex Solutions of Polynomials (Precalculus – College algebra 35) Professor Leonard · 39.9K views
  36. 36 40:23 Creating Polynomials from Complex Solutions (Precalculus – College Algebra 36) Professor Leonard · 30K views
  37. 37 1:09:18 Finding ALL Solutions of Polynomials (Precalculus – College Algebra 37) Professor Leonard · 38.4K views
  38. 38 40:21 Finding Vertical Asymptotes of Rational Functions (Precalculus – College Algebra 38) Professor Leonard · 53.3K views
  39. 39 46:24 Graphing Rational Functions with Transformations (Precalculus – College Algebra 39) Professor Leonard · 37K views
  40. 40 29:48 Finding a Horizontal Asymptote of a Rational Function (Precalculus – College Algebra 40) Professor Leonard · 41.8K views
  41. 41 15:46 Finding an Oblique Asymptote of a Rational Function (Precalculus – College Algebra 41) Professor Leonard · 59.4K views
  42. 42 7:49 Finding End Behavior of Rational Functions (Precalculus – College Algebra 42) Professor Leonard · 74K views
  43. 43 51:33 Finding Asymptotes and Holes of Rational Functions (Precalculus – College Algebra 43) Professor Leonard · 40.5K views
  44. 44 1:45:45 Graphing Rational Functions (Precalculus – College Algebra 44) Professor Leonard · 61.9K views
  45. 45 20:30 Inequalities with Functions – Graphically (Precalculus – College Algebra 45) Professor Leonard · 26.6K views
  46. 46 34:05 Inequalities with Polynomial Functions (Precalculus – College Algebra 46) Professor Leonard · 26.8K views
  47. 47 58:13 Inequalities with Rational Functions (Precalculus – College Algebra 47) Professor Leonard · 33.1K views
  48. 48 28:21 Composition of Functions (Precalculus – College Algebra 48) Professor Leonard · 77.2K views
  49. 49 29:16 Finding Domain of Composite Functions (Precalculus – College Algebra 49) Professor Leonard · 69.5K views
  50. 50 14:55 One to One Functions (Precalculus – College Algebra 50) Professor Leonard · 84.5K views
  51. 51 51:43 Finding Inverse Functions (Precalculus – College Algebra 51) Professor Leonard · 90K views
  52. 52 23:51 Graphs of Exponential Functions (Precalculus – College Algebra 52) Professor Leonard · 70.2K views
  53. 53 38:29 Graphing Exponential Functions with Transformations (Precalculus -College Algebra 53) Professor Leonard · 53.6K views
  54. 54 37:06 Solving Exponential Equations with Common Bases (Precalculus – College Algebra 54) Professor Leonard · 54.7K views
  55. 55 1:01:13 Introduction to Logarithms and Their Graphs (Precalculus – College Algebra 55) Professor Leonard · 87.3K views
  56. 56 16:01 Graphing Logarithms with Transformations (Precalculus – College Algebra 56) Professor Leonard · 37.9K views
  57. 57 34:46 Introduction to Solving Logarithms and Exponentials (Precalculus – College Algebra 57) Professor Leonard · 79K views
  58. 58 21:49 Properties of Logarithms (Precalculus – College Algebra 58) Professor Leonard · 48.6K views
  59. 59 28:42 How to Expand Logarithms (Precalculus – College Algebra 59) Professor Leonard · 35.1K views
  60. 60 25:46 How to Combine Logarithms (Precalculus – College Algebra 60) Professor Leonard · 27K views
  61. 61 9:55 How to Change the Base of a Logarithm (Precalculus – College Algebra 61) Professor Leonard · 28.3K views
  62. 62 33:00 Solving Logarithms with Common Bases (Precalculus – College Algebra 62) Professor Leonard · 26K views
  63. 63 1:03:43 Solving Logarithmic Equations with Exponentials (Precalculus – College Algebra 63) Professor Leonard · 48.2K views
  64. 64 1:03:24 Solving Exponential Equations with Logarithms (Precalculus – College Algebra 64) Professor Leonard · 45.1K views
  65. 65 46:13 Review of Compound Interest (Precalculus – College Algebra 65) Professor Leonard · 26.7K views
  66. 66 48:26 Exponential Growth and Decay (Precalculus – College Algebra 66) Professor Leonard · 78.3K views
  67. 67 54:35 Introduction to Sequences (Precalculus – College Algebra 67) Professor Leonard · 55.7K views
  68. 68 42:41 Introduction to Series and Summation Notation (Precalculus – College Algebra 68) Professor Leonard · 59.7K views
  69. 69 21:31 Arithmetic Sequences (Precalculus – College Algebra 69) Professor Leonard · 31.5K views
  70. 70 15:11 Arithmetic Series (Precalculus – College Algebra 70) Professor Leonard · 25.6K views
  71. 71 30:14 Geometric Sequences (Precalculus – College Algebra 71) Professor Leonard · 30.3K views
  72. 72 42:02 Geometric Series (Precalculus – College Algebra 72) Professor Leonard · 29.5K views
  73. 73 22:35 Proof by Mathematical Induction (Precalculus – College Algebra 73) Professor Leonard · 128.8K views
  74. 74 26:59 Introduction to Angles (Precalculus – Trigonometry 1) Professor Leonard · 104.2K views
  75. 75 19:10 Converting Degrees, Minutes, and Seconds (Precalculus – Trigonometry 2) Professor Leonard · 54.5K views
  76. 76 17:26 Introduction to Radians (Precalculus – Trigonometry 3) Professor Leonard · 69.2K views
  77. 77 38:45 Converting Radians and Degrees (Precalculus – Trigonometry 4) Professor Leonard · 58.2K views
  78. 78 36:57 Area of a Sector, Angular Velocity, Applications (Precalculus – Trigonometry 5) Professor Leonard · 53.3K views
  79. 79 39:59 Trigonometric Functions and the Unit Circle (Precalculus – Trigonometry 6) Professor Leonard · 127.2K views
  80. 80 42:57 How to Use the Unit Circle in Trigonometry (Precalculus – Trigonometry 7) Professor Leonard · 83.3K views
  81. 81 1:10:54 Basic Properties of Trigonometric Functions (Precalculus – Trigonometry 8) Professor Leonard · 76K views
  82. 82 46:54 Reciprocal Identities in Trigonometry (Precalculus – Trigonometry 9) Professor Leonard · 44.3K views
  83. 83 37:54 Pythagorean Identities for Trigonometric Functions (Precalculus – Trigonometry 10) Professor Leonard · 46.6K views
  84. 84 34:34 The Graphs of Sine and Cosine (Precalculus – Trigonometry 11) Professor Leonard · 62.3K views
  85. 85 1:06:48 Graphing Transformations with Sine and Cosine (Precalculus – Trigonometry 12) Professor Leonard · 57.9K views
  86. 86 26:14 How to Graph Tangent and Cotangent (Precalculus – Trigonometry 13) Professor Leonard · 45.7K views
  87. 87 40:39 Graphing Transformations with Tangent and Cotangent (Precalculus – Trigonometry 14) Professor Leonard · 32.2K views
  88. 88 29:55 How to Graph Cosecant and Secant (Precalculus – Trigonometry 15) Professor Leonard · 28.9K views
  89. 89 37:52 How to Graph Phase Shifts of Trigonometric Functions (Precalculus – Trigonometry 16) Professor Leonard · 43K views
  90. 90 30:58 Introduction to Inverse Trigonometric Functions (Precalculus – Trigonometry 17) Professor Leonard · 88.4K views
  91. 91 53:55 How to Use Inverse Trigonometric Functions (Precalculus – Trigonometry 18) Professor Leonard · 52.4K views
  92. 92 32:14 How to Find Inverse Trigonometric Functions (Precalculus – Trigonometry 19) Professor Leonard · 33.4K views
  93. 93 7:14 How to Solve Basic Inverse Trigonometric Functions (Precalculus – Trigonometry 20) Professor Leonard · 30.8K views
  94. 94 1:18:27 An Indepth Look at Using Inverse Trig Functions (Precalculus – Trigonometry 21) Professor Leonard · 39.3K views
  95. 95 1:34:36 How to Solve Trigonometric Equations (Precalculus – Trigonometry 22) Professor Leonard · 96.2K views
  96. 96 23:44 Introduction to Using Trigonometric Identities (Precalculus – Trigonometry 23) Professor Leonard · 79.7K views
  97. 97 55:39 How to Prove Trigonometric Identities (Precalculus – Trigonometry 24) Professor Leonard · 80K views
  98. 98 51:27 Introduction to Sum and Difference Formulas in Trigonometry (Precalculus – Trigonometry 25) Professor Leonard · 58.5K views
  99. 99 58:07 Using Sum and Difference Formulas in Trigonometry (Precalculus – Trigonometry 26) Professor Leonard · 33.7K views
  100. 100 27:17 Proving the Double and Half Angle Formulas for Trigonometry (Precalculus – Trigonometry 27) Professor Leonard · 59.7K views
  101. 101 1:20:34 How to Use the Double and Half Angle Formulas for Trigonometry (Precalculus – Trigonometry 28) Professor Leonard · 50.6K views
  102. 102 45:47 How to Use Product to Sum and Sum to Product Formulas in Trig (Precalculus – Trigonometry 29) Professor Leonard · 34.3K views
  103. 103 1:01:47 Introduction to Right Triangle Trigonometry (Precalculus – Trigonometry 30) Professor Leonard · 31.3K views
  104. 104 42:46 Finding Sides and Angles with Right Triangle Trigonometry (Precalculus – Trigonometry 31) Professor Leonard · 30K views
  105. 105 1:27:46 How to Use the Law of Sines in Trigonometry (Precalculus – Trigonometry 32) Professor Leonard · 38.4K views
  106. 106 56:36 How to Use the Law of Cosines in Trigonometry (Precalculus – Trigonometry 33) Professor Leonard · 32.3K views
  107. 107 16:19 How to Find the Area of a Triangle with Trigonometry (Precalculus – Trigonometry 34) Professor Leonard · 44.5K views
  108. 108 33:23 Simple Harmonic Motion in Trig (Precalculus – Trigonometry 35) Professor Leonard · 42.9K views
  109. 109 38:06 Introduction to Polar Coordinates (Precalculus – Trigonometry 36) Professor Leonard · 70.1K views
  110. 110 34:24 How to Convert From Polar Coordinates to Rectangular Coordinates (Precalculus – Trigonometry 37) Professor Leonard · 41.9K views
  111. 111 48:53 How to Convert From Rectangular Coordinates to Polar Coordinates (Precalculus – Trigonometry 38) Professor Leonard · 36.6K views
  112. 112 28:27 How to Convert From Rectangular Equations to Polar Equations (Precalculus – Trigonometry 39) Professor Leonard · 27.7K views
  113. 113 26:24 How to Convert From Polar Equations to Rectangular Equations (Precalculus – Trigonometry 40) Professor Leonard · 33.7K views
  114. 114 24:48 How to Graph Basic Polar Equations (Precalculus – Trigonometry 41) Professor Leonard · 53.7K views
  115. 115 46:38 How to Graph Advanced Polar Equations with Symmetry (Precalculus – Trigonometry 42) Professor Leonard · 148.7K views