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====== Chapter 09: Fundamentals of Trigonometry ======

{{ :fsc:fsc_part_1_solutions:fsc-1-chap-09-ptb.jpg?nolink|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====
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  * Exercise 9.1 | [[vfsc1>ch09:view&cp=01&p=06&ch=09&fp=Ex-9-1-FSC-part1-ver3-1|View Online]] | {{ :fsc:fsc_part_1_solutions:ex-9-1-fsc-part1-ver3-1.pdf |Download PDF}}
  * Exercise 9.2 | [[vfsc1>ch09:view&cp=01&p=06&ch=09&fp=Ex-9-2-FSC-part1-ver3-1|View Online]] | {{ :fsc:fsc_part_1_solutions:ex-9-2-fsc-part1-ver3-1.pdf |Download PDF}}
  * Exercise 9.3 | [[vfsc1>ch09:view&cp=01&p=06&ch=09&fp=Ex-9-3-FSC-part1-ver3|View Online]] | {{ :fsc:fsc_part_1_solutions:ex-9-3-fsc-part1-ver3.pdf |Download PDF}}
  * Exercise 9.4 | [[vfsc1>ch09:view&cp=01&p=08&ch=09&fp=Ex-9-4-FSC-part1-hw-ver3|View Online]] | {{ :fsc:fsc_part_1_solutions:Ex-9-4-FSC-part1-hw-ver3.pdf |Download PDF}}
  * Exercise 9.4 by Faiz Hussain | [[vfsc1>ch09:view&cp=01&p=04&ch=09&fp=Ex-9-4-FSC-part1-faiz-hussain|View Online]] | {{ :fsc:fsc_part_1_solutions:ex-9-4-fsc-part1-faiz-hussain.pdf |Download PDF}}
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===Notes by Akhtar Abbas===
The following notes are provided by Mr. [[people:akhtar]]. A video explanation of the solutions is available at his YouTube channel [[https://www.youtube.com/channel/UCQSr7vnuyMLtNcUFy-GenIQ|Suppose Math]].
<callout type="success" icon="fa fa-download">
  * Exercise 9.1  |  {{ :fsc:fsc_part_1_solutions:ex-9-1-fsc-part1-akhtar-abbas.pdf |Download PDF}} NEW
  * Exercise 9.2  |  {{ :fsc:fsc_part_1_solutions:ex-9-2-fsc-part1-akhtar-abbas.pdf |Download PDF}} NEW
  * Exercise 9.3  |  {{ :fsc:fsc_part_1_solutions:ex-9-3-fsc-part1-akhtar-abbas.pdf |Download PDF}} NEW  
  * Exercise 9.4  |  {{ :fsc:fsc_part_1_solutions:ex-9-4-fsc-part1-akhtar-abbas.pdf |Download PDF}} NEW  
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====Short Questions====
The following short questions was send by Mr. [[people:akhtar]].
<callout type="success" icon="fa fa-download">
  * Chapter 09 | [[aafsc1>short-question-ch09-fsc-part1-akhtar-abbas|View Online]] | {{:fsc:fsc_part_1_mcqs:short-question-ch09-fsc-part1-akhtar-abbas.pdf|Download PDF}} NEW
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