Er Suraj Dubey-IITJEE maths

Er Suraj Dubey-IITJEE maths IIT JEE Math's Faculty(PhysicsWallah) || Ex-Byju’s || Ex-Vedantu || Ex-Pandey Classes |

JEE mains qualifier || GATE Qualifier || Mechanical Engineer || IIT JEE Math's Teacher || Working in Pandey Classes Prayagraj || Online Teaching maths For IIT JEE students || SSC maths teacher ||

22/09/2026

प्रतिभा को कूड़ेदान में रखने वाला देश कभी विकसित नहीं हो सकता 🤟

📘 Calculus me Trigonometry weak hai?Ye complete formula sheet aapke differentiation, integration aur limits sabko easy b...
25/05/2026

📘 Calculus me Trigonometry weak hai?
Ye complete formula sheet aapke differentiation, integration aur limits sabko easy bana degi 🔥
💯 Save karo, revise karo aur JEE ke tough questions ko confidently solve karo 🚀
📌 Complete Trigonometry Formula Sheet for Calculus
✔ Basic Identities
✔ Angle Formulas
✔ Half/Double Angle
✔ Product-Sum
✔ Important Limits
👨‍🏫 Er Suraj Sir IITJEE

Straight Lines is one of the most scoring chapters in JEE Maths 📈🔥But most students only memorize formulas…Real rankers ...
24/05/2026

Straight Lines is one of the most scoring chapters in JEE Maths 📈🔥
But most students only memorize formulas…
Real rankers understand: ✅ Slope concepts
✅ Angle between lines
✅ Perpendicular & parallel conditions
✅ Short tricks for PYQs
This one-page revision sheet will save you hours before exam 🚀
📌 Chapter : Straight Lines
📌 JEE Main + Advanced
📌 Formula + Concept + PYQ + Mistakes
Save this post now and revise later ❤️
Which chapter should I upload next? 👇
— Er Suraj Sir IITJEE

CoordinateGeometry

Most students try lengthy calculations here…But JEE wanted just ONE smart observation 👀🔥And the whole question collapses...
24/05/2026

Most students try lengthy calculations here…
But JEE wanted just ONE smart observation 👀🔥
And the whole question collapses beautifully 💯
This is why PYQs are GOLD for JEE Main preparation 🚀
📌 Chapter : Quadratic Equations
📌 Exam : JEE Main 2024
📌 Level : Moderate + Conceptual
📌 Concept Used : Polynomial Root Transformation
Save this for revision and send it to your JEE friend ❤️
— Er Suraj Sir IITJEE

08/03/2026

04/03/2026

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25/02/2026

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21/02/2026

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