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Unit # 7 – Download Free Class 10th / Matric / SSC-II Mathematics / Maths Notes (FBISE Islamabad) and Other Boards in shape of Video Lectures in Urdu Language

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From this section you can download / view Video Lectures on all subjects for all 6th, 7th, 8th, 9th and 10th classes/grades free of cost. The Videos for class 9th and 10th classes are prepared by SABAK Foundation for the ease of students as per new and updated syllabus/course prescribed by Federal Board of Intermediate & Secondary Education (FBISE), Islamabad – Pakistan and other BISE(s)/Boards of Pakistan and Directorate of Education, Islamabad – Pakistan. We are fully hopeful that after after watching/viewing these Video Lectures you will score 90% plus marks in your exams as they have been prepared in a very simple, easy, brief and in simple and lucid language to understand.

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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 1-The Quadrants & Quadrantal Angles
  6. Trigonometric Ratios & Their Reciprocals
  7. Problem 1-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 1-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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