Скачать или смотреть Exercise 10.4 Q.No#1,2 || Trigonometry || 11th Class Math || Easy method in Urdu/Hindi.

Welcome to Math with Hanan 📘

In this video, we solve Question 1 and Question 2 of Exercise 10.4 from 11th Class Mathematics – Chapter 10 (Trigonometric Identities).
The lecture is explained in easy Urdu with clear, step-by-step solutions.

📌 What’s Included in Q1 & Q2:

➡️ Question 1:

Express the following products as sum or difference using Product-to-Sum identities:

sin A · sin B

cos A · cos B

sin A · cos B

cos A · sin B


➡️ Question 2:

Express the following sums or differences as products using Sum-to-Product identities:

sin A + sin B

sin A – sin B

cos A + cos B

cos A – cos B


🎯 Why this video is important:

✔ Board-focused step-by-step method
✔ Easy formula memorization tricks
✔ Short-cut methods for fast solving
✔ Perfect for FSc / ICS Part-1 students
✔ Helps in board exams + entry test preparation

If you're struggling with product-to-sum or sum-to-product transformations, this video will give you full concept clarity.

Timecodes
00:00 Question No#1 All parts
13:42 Question No#2 All parts



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