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Chapter 12: Application of Trigonometry

Geometric series

Notes (Solutions) of Chapter 12: Application of Trigonometry, Text Book of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Text Book Board, Lahore.

Contents & summary

  • Introduction
  • Tables of Trigonometric Ratios
    • Exercise 12.1
  • Solution of Right Triangles
    • Exercise 12.2
  • Heights and Distances
  • Engineering and Heights and Distances
    • Exercise 12.3
  • Oblique Triangles
    • The Law of Cosine
    • The Law of Sines
    • The Law of Tangents
    • Half Angle Formulas
  • Solution of Oblique Triangles
    • Case I : When measure of one side and two angles are given
    • Exercise 12.4
    • Case II : When measure of two sides and their included angle are given
    • Exercise 12.5
    • Case III : When measures of three sides are given
    • Exercise 12.6
  • Area of Triangle
    • Exercise 12.7
  • Circles Connected with Triangle
    • Circum-Circle
    • In-Circle
    • Escribed Circles
  • Engineering and Circles Connected with Triangles
    • Exercise 12.8

List of formulas of Chapter 12

View online or download PDF

Exercise 12.1 View Online Download PDF (90KB)
Exercise 12.2 (Handwritten) View Online Download PDF (89KB)
Exercise 12.3 (Handwritten) View Online Download PDF (217KB)
Exercise 12.4 View Online Download PDF (176KB)
Exercise 12.5 View Online Download PDF (76KB)
Exercise 12.6 (Handwritten) View Online Download PDF (167KB)
Exercise 12.7 (Handwritten) View Online Download PDF (156KB)
Exercise 12.8 View Online Download PDF (118KB)


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