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  1. Finding the Quadrant in Which an Angle Lies - Example 1

  2. Finding the Quadrant in Which an Angle Lies - Example 2

  3. Finding the Quadrant in Which an Angle Lies - Example 3

  4. Coterminal Angles - Example 1

  5. Coterminal Angles - Example 2

  6. Complementary and Supplementary Angles - Example 1

  7. Complementary and Supplementary Angles - Example 2

  8. Degrees and Radians and Converting Between Them! Example 1

  9. Arc Length Formula - Example 1

  10. Arc Length Formula - Example 2

  11. Finding Trigonometric Function Values Given One Trig Value in a Right Triangle, Ex 1

  12. Finding Trigonometric Function Values Given One Trig Value in a Right Triangle, Ex 2

  13. Finding Trigonometric Function Values Given One Trig Value in a Right Triangle, Ex 3

  14. Finding an Angle Given the Value of a Trigonometric Function - Example 1

  15. Finding an Angle Given the Value of a Trigonometric Function - Example 2

  16. Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1

  17. Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 2

  18. Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 3

  19. Finding the Height of an Object Using Trigonometry, Example 1

  20. Finding the Height of an Object Using Trigonometry, Example 2

  21. Finding the Height of an Object Using Trigonometry, Example 3

  22. Degrees and Radians

  23. A Way to remember the Entire Unit Circle for Trigonometry

  24. A Trick to Remember Values on The Unit Circle

  25. Evaluating Trigonometric Functions for an Unknown Angle, Given a Point on the Angle, Ex 1

  26. Evaluating Trigonometric Functions for an Unknown Angle, Given a Point on the Angle, Ex 2

  27. Reference Angle for an Angle, Ex 1 (Using Degrees)

  28. Reference Angle for an Angle, Ex 2 (Using Radians)

  29. Evaluating Trigonometric Functions Using the Reference Angle, Example 1

  30. Evaluating Trigonometric Functions Using the Reference Angle, Example 2

  31. Finding Trigonometric Values Given One Trigonometric Value/Other Info, Example 1

  32. Finding Trigonometric Values Given One Trigonometric Value/Other Info, Example 2

  33. Evaluating Trigonometric Functions at Important Angles, Ex 1

  34. Evaluating Trigonometric Functions at Important Angles, Ex 2

  35. The Graph of Cosine, y = cos (x)

  36. Graphing Sine and Cosine With Different Coefficients (Amplitude and Period), Ex 1

  37. Graphing y = -2 cos(2x)

  38. Maximum and Minimum Values of Sine and Cosine Functions, Ex 1

  39. Maximum and Minimum Values of Sine and Cosine Functions, Ex 2

  40. Graphing Sine and Cosine with Phase (Horizontal) Shifts, Example 1

  41. Graphing Sine and Cosine with Phase (Horizontal) Shifts, Example 2

  42. Trigonometric Functions and Graphing: Amplitude, Period, Vertical and Horizontal Shifts, Ex 2

  43. Basic Questions Related to Tangent, Cotangent, Secant, Cosecant, Ex 1

  44. Basic Questions Related to Tangent, Cotangent, Secant, Cosecant, Ex 2

  45. Basic Questions Related to Tangent, Cotangent, Secant, Cosecant, Ex 4

  46. Finding a Formula for a Trigonometric Graph, Ex 1

  47. Finding a Formula for a Trigonometric Graph, Ex 2

  48. Trigonometry Word Problem, Finding The Height of a Building, Example 1

  49. Trigonometry Word Problem, Example 2

  50. Trigonometry Word Problem, Determining the Speed of a Boat, Example 3

  51. Simplifying Trigonometric Expressions Using Identities, Example 1

  52. Simplifying Trigonometric Expressions Using Identities, Example 2

  53. Simplifying Trigonometric Expressions Using Identities, Example 3

  54. Simplifying Trigonometric Expressions Involving Fractions, Ex 1

  55. Simplifying Trigonometric Expressions Involving Fractions, Example 2

  56. Simplifying Products of Binomials Involving Trigonometric Functions, Ex 1

  57. Simplifying Products of Binomials Involving Trigonometric Functions, Ex 2

  58. Factoring Trigonometric Expressions, Example 1

  59. Factoring and Simplifying Trigonometric Expressions - Example 2

  60. Examples with Trigonometric Functions: Even, Odd or Neither, Example 1

  61. Examples with Trigonometric Functions: Even, Odd or Neither, Example 2

  62. Examples with Trigonometric Functions: Even, Odd or Neither, Example 3

  63. Even, Odd or Neither, Trigonometric Functions, Example 4

  64. Proving an Identity, Example 1

  65. Proving an Identity, Example 2

  66. Proving an Identity - Other Examples, Example 1

  67. Proving an Identity - Other Examples, Example 2

  68. Solving a Basic Trigonometric Equation, Example 1

  69. Solving a Basic Trigonometric Equation, Example 2

  70. Solving a Basic Trigonometric Equation, Example 3

  71. Solve Trigonometric Equation by Factoring, Example 1

  72. Solving a Trigonometric Equation by Factoring, Example 2

  73. Solving a Trigonometric Equation by Factoring, Example 3

  74. Solving Trigonometric Equation, Harder Example - Example 1

  75. Solving Trigonometric Equation, Harder Example - Example 2

  76. Solving Trigonometric Equation , Harder Exampe - Example 3

  77. Solving Trigonometric Equations Using the Quadratic Formula - Example 1

  78. Solving Trigonometric Equations Using the Quadratic Formula - Example 2

  79. Solving Trigonometric Equations Using the Quadratic Formula - Example 3

  80. Solving Word Problems Involving Trigonometric Equations, Example 1

  81. Solving Word Problems Involving Trigonometric Equations, Example 2

  82. Identities for Sum and Differences of Sine and Cosine, Example 1

  83. Identities for Sum and Differences of Sine and Cosine, Example 2

  84. Identities for Sum and Differences of Sine and Cosine, Example 3

  85. Sum and Difference Identities for Sine and Cosine, More Examples #1

  86. Sum and Difference Identities for Sine and Cosine, More Examples #2

  87. Sum and Difference Identities for Sine and Cosine, More Examples #3

  88. Sum and Difference Identities to Simplify an Expression, Example 1

  89. Sum and Difference Identities to Simplify an Expression, Example 2

  90. Sum and Difference Identities to Simplify an Expression, Example 3

  91. Using the Sum and Difference Identities for Sine, Cosine and Tangent, Ex 1

  92. Using the Sum and Difference Identities for Sine, Cosine and Tangent, Ex 2

  93. Using the Sum and Difference Identities for Sine, Cosine and Tangent, Ex 3

  94. Using Double Angle Identities to Solve Equations, Example 1

  95. Using Double Angle Identities to Solve Equations, Example 2

  96. Using Double Angle Identities to Solve Equations, Example 3

  97. [Deleted Video]

  98. Word Problems Involving Multiple Angle Identities, Example 1

  99. Word Problems Involving Multiple Angle Identities, Example 2

  100. Word Problems Involving Multiple Angle Identities, Example 3

  101. Cofunction Identities, Example 2

  102. Cofunction Identities, Example 3

  103. Power Reducing Formulas for Sine and Cosine, Example 1

  104. Power Reducing Formulas for Sine and Cosine, Example 2

  105. Half Angle Identities to Evaluate Trigonometric Expressions, Example 1

  106. Half Angle Identities to Evaluate Trigonometric Expressions, Example 2

  107. [Deleted Video]

  108. Half Angle Identities to Evaluate Trigonometric Expressions, Example 3

  109. The Law of Sines, Example 1

  110. The Law of Sines, Example 2

  111. Law of Sines, Example 3

  112. Side Angle Side for Triangles, Finding Missing Sides/Angles, Example 1

  113. Side Angle Side for Triangles, Finding Missing Sides/Angles, Example 2

  114. [Private Video]

  115. Solving a Triangle, SAS, Example 1

  116. Solving a Triangle, SAS, Example 2

  117. Law of Sines - Application/Word Problem, Ex 1

  118. Law of Sines - Application / Word Problem, Ex 2

  119. Law of Sines - Application/Word Problem, Ex 3

  120. Heron's Formula, Example 1

  121. Heron's Formula, Ex 2

  122. Heron's Formula, Example 3

  123. Law of Cosines, Example 1

  124. Law of Cosines, Example 2

  125. Law of Cosines, Example 3

  126. Law of Cosines, Example 4

  127. Law of Cosines, Example 5

  128. Law of Cosines, Example 6

  129. Law of Cosines, Word Problem #1

  130. An Introduction to Vectors, Part 1

  131. When Are Two Vectors Considered to Be the Same?

  132. Magnitude and Direction of a Vector, Example 1

  133. Magnitude and Direction of a Vector, Example 2

  134. Magnitude and Direction of a Vector, Example 3

  135. Vector Addition and Scalar Multiplication, Example 1

  136. Vector Addition and Scalar Multiplication, Example 2

  137. Finding the Components of a Vector, Ex 1

  138. Finding the Components of a Vector, Ex 2

  139. Finding a Unit Vector, Ex 1

  140. Finding a Unit Vector, Ex 2

  141. Word Problems Involving Velocity or Other Forces (Vectors), Ex 1

  142. Word Problems Involving Velocity or Other Forces (Vectors), Ex 2

  143. Word Problems Involving Velocity or Other Forces (Vectors), Ex 3.

  144. Complex Numbers: Graphing and Finding the Modulus, Ex 1

  145. Complex Numbers: Graphing and Finding the Modulus, Ex 2

  146. Expressing a Complex Number in Trigonometric or Polar Form, Ex 1

  147. Expressing a Complex Number in Trigonometric or Polar Form, Ex 2

  148. Expressing a Complex Number in Trigonometric or Polar Form, Ex 3

  149. Complex Numbers: Convert From Polar to Complex Form, Ex 1

  150. Complex Numbers: Multiplying and Dividing in Polar Form, Ex 1

  151. Complex Numbers: Multiplying and Dividing in Polar Form, Ex 2

  152. DeMoivre's Theorem: Raising a Complex Number to a Power, Ex 1

  153. DeMoivre's Theorem: Raising a Complex Number to a Power, Ex 2

  154. DeMoivre's Theorem: Raising a Complex Number to a Power, Ex 3

  155. Roots of Complex Numbers, Ex 1

  156. Roots of Complex Numbers, Ex 2

  157. Roots of Complex Numbers, Ex 3

  158. More Roots of Complex Numbers, Ex 1

  159. More Roots of Complex Numbers, Ex 2

  160. Roots of Unity, Example 1

  161. Roots of Unity, Ex 2

  162. Intro to Polar Coordinates, Ex 1

  163. Converting Between Polar and Rectangular (Cartesian) Coordinates, Ex 3

  164. Converting Between Polar and Rectangular Equations, Ex 1

  165. Converting Between Polar and Rectangular Equations, Ex 2

  166. Converting Between Polar and Rectangular Equations, Ex 3

  167. [Private Video]

  168. Graphing Simple Polar Equations, Ex 1

  169. Graphing Simple Polar Equations, Ex 2

  170. Graphing Special Polar Equations, Ex 1

  171. Graphing Special Polar Equations; How Many Petals Will a Graph Have?

  172. Basic Info About a Limacon