Chapter 09: Fundamentals of Trigonometry

Chapter 09: Fundamentals of Trigonometry Notes (Solutions) of Chapter 09: Fundamentals of Trigonometry, Text Book of Algebra and Trigonometry Class XI (Mathematics FSc Part 1 or HSSC-I), Punjab Text Book Board, Lahore. This chapter has four exercise and solutions of those exercises are given below which can be downloaded in PDF format or can be viewed online.

Contents & summary

  • Introduction
  • Units of Measures of Angles
    • Sexagesimal System
    • Conversion from $D^\circ M'S''$ to the decimal form and vice versa
    • Circular System (Radians)
  • Relation between the Length of an arc of a Circle and the Circular measure of its Central angle
    • Conversion of Radian into Degree and vice versa
    • Exercise 9.1
  • General Angle (Coterminal Angle)
  • Angle in the Standard Position
  • Trigonometric Function
  • Trigonometric Function of any Angle
  • Fundamental Identities
  • Signs of the Trigonometric Function
    • Exercise 9.2
  • The Values of Trigonometric Functions of acute angles $45^\circ , 30^\circ , 60^\circ$
  • The Values of Trigonometric Functions of acute angles $0^\circ , 90^\circ , 180^\circ , 270^\circ , 360^\circ$
    • Exercise 9.3
  • Domains of Trigonometric Functions and of Fundamental Identities
    • Exercise 9.4

View online or download PDF

Short Questions

The following short questions was send by Mr. Akhtar Abbas.

For previous and next chapter


  • fsc/fsc_part_1_solutions/ch09
  • Last modified: 3 months ago
  • (external edit)