You should study 3D Geometry, Probability and Statistics, Vector Algebra, Integration, Complex numbers, Parabola, Trigonometric Ratios.
Mathematics in JEE involves thinking abilities that require preparation beyond NCERT books. Get the basic concepts correct by practising Class 11 and Class 12 Mathematics books. Atleast 1 question comes from the topics of Vectors, Mathematical Reasoning and Statistics based on questions in NCERT Maths book. Although some of the concepts dont directly appear in JEE, the basic concepts from NCERT books help IIT aspirants to answer advanced mathematical problems in JEE. In this way, whenever students practise problems from other JEE Maths reference books with advanced problems, they are better prepared to grasp the advanced problem solving methods.
You need to refer a lot of topics in maths to get passed in it.Especially trigonometry matters a lot.You have to refer all the previous question papers and have to solve it .Probability also one of the important topic to be practised.So revise all the topics.
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