Скачать или смотреть Trigonometry Class 19 | Foundation batch | Ft. Aditya Ranjan | by Aditya Ranjan sir

📌 Class 19 | Trigonometric Ratios of Allied Angles (Part–1) | Trigonometry | Foundation Batch by Aditya Ranjan Sir

In this video, we'll learn the relationship of trigonometric ratios to allied angles (90°, 180°, 270°, 360°) and their shortcut tricks.
This class is the most conceptual and logical part of trigonometry for you—allowing you to solve all types of SSC and Railway exam questions in seconds.

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📖 Topics Covered in Class 19

🔹 Concept of Allied Angles
🔹 Signs of Trigonometric Ratios in All Quadrants
🔹 Shortcut to Remember ASTC Rule
🔹 Relation between sin(180°−θ), cos(90°+θ), tan(270°−θ), etc.
🔹 Step-by-Step Formula Derivation
🔹 Exam-Oriented Practice Questions

👉 After this lecture, you will be able to solve all types of Allied Angles questions without any mistakes.

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🎯 Exam Relevance

✔️ SSC (CGL, CHSL, GD, CPO)
✔️ RRB ALP, NTPC, Group D, JE
✔️ Defence, Banking & State Level Exams


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👨‍🏫 About Aditya Ranjan Sir

✔️ SSC CGL & CHSL AIR 114 Qualified
✔️ CPO & CDS Qualified
✔️ Excise Inspector (SSC CGL 2019)
✔️ 7+ Years Teaching Experience
✔️ Famous for Shortcut Tricks & Conceptual Clarity


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