পরিবর্ত বা প্রতিস্থাপন পদ্ধতিতে সমাকলন পর্ব - ১ (দ্বাদশ শ্রেণি)

Описание: This part of integration is very important for student. But very easy to solve the problem. I hope this video is very helpful for students. So I request you please watch this full video to solve easily the following problems.

Formula download link:

https://drive.google.com/file/d/1jX-G...