Скачать или смотреть Mathematics 9th Class PTB Chapter 6: Trigonometry▶ Exercise 6.4 | Question No. 2 | Complete Solution

📘 Mathematics 9th Class (PTB – Punjab Textbook Board)
📐 Chapter 6: Trigonometry
▶ Exercise 6.4 | Question No. 2 | Complete Solution
This video is strictly based on Mathematics 9th Class Punjab Textbook Board (PTB) syllabus.
In this lecture, we explain Math 9th Exercise 6.4 Question Number 2 step by step, according to Punjab Board paper pattern.
This is one of the most important questions of Chapter 6 Trigonometry, frequently asked in Punjab Board exams.
🔹 Math 9th Class Exercise 6.4 Question No. 2 (All Parts)
In Mathematics Ninth Class PTB Exercise 6.4 Question 2, multiple parts are given.
Each part is solved separately, clearly and in exam-style.



✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (i) / Part One
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (ii) / Part Two
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (iii) / Part Three
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (iv) / Part Four
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (v) / Part Five
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (vi) / Part Six
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (vii) / Part Seven
✔ Math 9th Class Exercise 6.4 – Question No. 2 – Part (viii) / Part Eight


🔢 Trigonometric Values Used (PTB Standard)
In Math 9th PTB Exercise 6.4 Question No. 2, we substitute standard values:
sin 30° = 1/2
sin 45° = 1/√2
sin 60° = √3/2
cos 30° = √3/2
cos 45° = 1/√2
cos 60° = 1/2
tan 30° = 1/√3
tan 45° = 1


All values are directly put into the expressions and then simplified step by step.
🎯 Exam Importance (Punjab Board)
✔ Punjab Board ke papers mein repeat hone wala question
✔ PTB syllabus ka high-weight trigonometry question
✔ Objective + Subjective dono ke liye important
✔ Short questions aur MCQs ki base yahin se banti hai
Agar aap Exercise 6.4 Question 2 achhi tarah samajh lein, to
➡ Chapter 6 Trigonometry ka major portion clear ho jata hai.


🧠 Common Errors (Students ki Madad ke Liye)
❌ sin aur cos ki values mix kar dena
❌ √3 aur √2 ki wrong simplification
❌ rationalization bhool jana
❌ proper steps na likhna

Is video mein har step PTB marking scheme ke mutabiq likha gaya hai


Math 9th class exercise 6.4 question 2 PTB
Mathematics 9th Punjab textbook exercise 6.4
Class 9 trigonometry exercise 6.4 question no 2
Math 9th ex 6.4 q 2 all parts solved
Punjab board math 9 chapter 6 solution
Sin cos tan values class 9 PTB


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