Which chapters and topics of 10th maths are required to understand 11th 12th IIT JEE physics and maths?

What you have learned in your previous standard, everything is important to understand 11th 12th IIT JEE physics and maths. Everything is related to each other. What you have learned in 10th that are the basics to understand 11th and 12th . For IIT JEE you need to put more effort into some chapters. IIT JEE mentors or JEE toppers can guide you properly on which topic you should put more importance. Some chapter of class 10th is mentioned below that are important for 11th and 12th :

- Coordinate Geometry
- Arithmetic Progressions
- Pair of Linear Equations in Two Variables
- Polynomials
- Introduction to Trigonometry
- Some Application of Trigonometry
- Quadratic Equations