Hello farheen,

Matrices and determinants is the most scoring chapter of jee mains and advanced. If you have the knack of solving it then it would be at your fingertips and you can easily fetch 4-5 marks in these competitive exams. These sums are considered as bonus questions as there are only certain stipulated types of problems in this chapter that can come in the jee exam.

You should focus on the determinants rules and adjoint matrix sums. So, kindly do this chapter now itself if it's not done by you.