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Chapter 7: Introduction to Trigonometry (44 videos)
7.1: Measurement of an Angle
  1. Introduction to an Angle
  2. Measuring an Angle in Sexagesimal System
  3. Sexagesimal System into Decimal form & Vice Versa
  4. Radian Measure of an Angle
  5. Relationship Between Radians & Degrees.
7.2: Sector of a Circle
  1. Relationship of Radius-Central Angle-Arc Length
  2. Problem 1: Relationship of Radius-Central Angle-Arc Length
  3. Area of a Circular Sector.
  4. Problem 1: Area of a Circular Sector.
7.3: Trigonometric Ratios
  1. General Angles
  2. Angle in Standard Position.
  3. Problem-Angle in Standard Position
  4. The Quadrants & Quadrantal Angles
  5. Problem-The Quadrants & Quadrantal Angles
  6. Trigonometric Ratios & Their Reciprocals
  7. Problem-Trigonometric Ratios & Their Reciprocals
  8. Trigonometric ratios of 45 degree
  9. Problem 1: Trigonometric ratios of 45 degree
  10. Trigonometric ratios of 30 degree and 60 degree
  11. Problem 1: Trigonometric ratios of 30 degree and 60 degree
  12. Signs of Trigonometric Ratios in Different Quadrants
  13. Problem-Signs of Trigonometric Ratios in Different Quadrant
  14. Values of Remaining Trigonometric Ratios
  15. Values of Trigonometric Ratios at Quadrantal Angle
  16. Problem-Values of Trigonometric Ratios at Quadrantal Angle
7.4: Trigonometric Identities
  1. Proof of Fundamental Trigonometric Identity
  2. Problem 1: Proof of Fundamental Trigonometric Identity
  3. More on Fundamental Trigonometric Identity
  4. Problem 1: More on Fundamental Trigonometric Identity
  5. Problem 2: More on Fundamental Trigonometric Identity
  6. Problem 3: More on Fundamental Trigonometric Identity
  7. Problem 4: More on Fundamental Trigonometric Identity
7.5: Angle of Elevation and Angle of Depression
  1. Concept of Angle of Elevation & Depression
  2. Problem 1: Concept of Angle of Elevation & Depression
  3. when one Side & Angle of Elevation are Given
  4. Problem 1: when one Side & Angle of Elevation are Given
  5. Problem 2: when one Side & Angle of Elevation are Given
  6. when One Side & Angle of Depression are Given
  7. Problem 1: when One Side & Angle of Depression are Given
  8. when Hypotenuse & Angle of Elevation are Given
  9. Problem 1: when Hypotenuse & Angle of Elevation are Given
  10. when Given Sides-Angle of Elevation-Depression
  11. Problem 1: when Given Sides-Angle of Elevation-Depression
  12. Problem 2: when Given Sides-Angle of Elevation-Depression
 

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