Complex Number, Solution of Triangle, Circle and Mathematical Induction by SOJ Sir

SOJ Sir is known for his exclusive approach and unmatchable IIT JEE teaching style that made him very famous amongst students. This course by SOJ Sir focuses on Circles for class 11th Mathematics syllabus.

  • Master the concepts of Complex number, Circles, Solution of Triangle and Mathematical Induction.
  • Covers the complete syllabus of Circles for class 11th CBSE, ISC and other state boards.
  • Designed and Developed by the experienced faculty of KOTA (SOJ Sir - CTAE Udaipur Alumni).

This course by SOJ Sir helps students prepare in right direction to be able to take on the IIT-JEE.

  • Lecture videos are enriched with basic and advanced concepts.
  • Assignment and DPPs are provided in support to these video lectures.
  • Medium of Instruction of this course is English.
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Subject Mathematics Medium English Target XI,XII,XIII Class Language English + Hindi
Category Topic Based Lecture 19 Videos Expected Lecture 19 Videos Study Material N/A
Course Range

Complex Number

Definition,Equality of two c-n,Represetation of c-n,Polar representation, Euler's Representation, Proportion of conjugate,Properties of argument and modulus,Properties of modules + De moivre's theorem,Rotation theorem,Cube roots of unity.

Solution of Triangle

Sine rule,cosine rule, tangent rule, projection rule,half angle, area of Δ, circumcentre, in/exradius, Example of R,r,r,r2,r2,Distance of special point.

Mathematical Induction

Principle of Mathematical Induction


Various forms of tangents,length of tangent power of point, pair of tangents,Chord of Contact,System of two circles (No. of common tangents),System of two circles ,Common chord, Orthogonality of circles,Radicalaxis, radical centre,family of circles,Pole & Polar.

  • Must for class 11th studying students who want to do well in school/board examination and preparing for JEE Main & Advanced Exams.
  • Ideal topics for class 12th pass (13th) students who are preparing for JEE Main & Advanced Exams.
  • Essential topics for JEE Main & Advance Exam preparations.


About IIT JEE Yearlong Course

Etoosindia has hired some of the best JEE faculties from Kota to ensure that the students seeking admission in the Indian Institute of Technology get appropriate guidance to crack JEE Main and Advanced. These faculties carry several years of experience and have an in-depth knowledge about the subject as well as the examination pattern.

They have designed the yearlong IIT JEE courses and delivered the video lectures available at Etoosindia keeping the course content and the pattern in mind. The lectures and course content are revised from time to time to match up to the latest standards set by the Indian Institute of Technology. We provide these IIT JEE lectures in Mobile, USB and VOD for easy access. Now IIT JEE online preparation is much better than attending classroom courses.

We, at Etoosindia, believe that a student can crack this tough entrance examination only if he is given the right guidance from the very beginning. Thus, we have designed JEE Main + Advanced Foundation Course for the students of class 9th and 10th to clear the fundamental concepts of physics, chemistry and mathematics from the onset to set a strong foundation. We also provide IIT JEE Crash Course for class 12th students to help develop a good base for all those aiming to appear for the Joint Entrance Examination in future. Our foundation and crash courses are designed in a manner that they do not only cover the IIT JEE syllabus to help lay a solid foundation for the IIT aspirants but also cover the entire syllabus to prepare the students for the CBSE examination"
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