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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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