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Chapter 9: Fundamentals of Trigonometry (32 videos)
9.1: Introduction
  1. Introduction to an Angle
  2. Measuring an Angle in Sexagesimal System
  3. Problem1-Measuring an Angle in Sexagesimal System
  4. Sexagesimal System into Decimal form & Vice Versa
  5. Problem-Sexagesimal System into Decimal form & Vice Versa
9.2: Radian Measure
  1. Radian Measure of an Angle
  2. Problem-Radian Measure of an Angle
  3. Problem2-Radian Measure of an Angle
9.3: General and Its Measure in Degree and Radians
  1. General Angles
  2. Problem-General Angles
9.4: Relation Between Radian and Degree Measure
  1. Relationship Between Radians & Degrees.
9.5: Relation Between Arc-Length, Radius and General Angle
  1. Relationship of Radius-Central Angle-Arc Length
  2. Problem 1: Relationship of Radius-Central Angle-Arc Length
  3. Problem2-Relationship of Radius-Central Angle-Arc Length
  4. Area of a Circular Sector.
  5. Problem 1: Area of a Circular Sector.
  6. Problem2-Area of a Circular Sector.
  7. Problems Using Arcs and Sectors
  8. More on Problems Using Arcs and Sectors
9.6: The Radian Function
  1. The Radian Function
9.7: Signs of the Trigonometric Function in the Four Quadrants
  1. Signs of Trigonometric Ratios in Different Quadrants
  2. Problem-Signs of Trigonometric Ratios in Different Quadrant
  3. Problem2-Signs of Trigonometric Ratios in Different Quadrant
  4. Trigonometric Functions for a Unit Circle
  5. Values of Remaining Trigonometric Ratios
  6. Values of Trigonometric Ratios at Quadrantal Angle
  7. Problem-Values of Trigonometric Ratios at Quadrantal Angle
9.8: Values of Trigonometric Functions
  1. Trigonometric ratios of 45 degree
  2. Problem 1: Trigonometric ratios of 45 degree
  3. Trigonometric ratios of 30 degree and 60 degree
  4. Problem 1: Trigonometric ratios of 30 degree and 60 degree
  5. Problem 2: Trigonometric ratios of 30 degree and 60 degree
 

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