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📚Method of Substitution |2nd Chapter One Shot|All Concept+S.N Dey Book solution| #asishmathacademy

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📚 Class 12 Maths | Integration Chapter – Method of Substitution Explained!
✅ In this video, we solve the most important substitution method questions from S. N. Dey (Semester 4 syllabus – WBCHSE/ISC/CBSE).
🔥 Learn how to choose the right substitution, solve tricky integrals step by step, and score full marks in exams.

📌 Topics Covered:
What is Method of Substitution?
Easy Tricks to Choose Substitution
S. N. Dey Book Solutions (Class 12 Semester 4)
Bengali & English Explanation
Full step-by-step guidance

📖 Book Reference: S. N. Dey Mathematics – Class 12, Chapter: Integration
🎯 Target Board: WBCHSE / CBSE / ISC – Semester 4

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📘 Disclaimer: This video is made for educational purposes only. All questions from Chhaya and SN Dey books are solved here under fair use for academic help. We do not own or distribute the books.


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