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 #Math9thClass #PTB #PunjabTextbookBoard #Exercise6_4 #Question2 #Trigonometry #Class9Maths #PunjabBoard