Edurack Blog

JEE Main vs JEE Advanced: differences and which to prepare

72% of JoSAA seats are allotted on JEE Main rank alone. See the real differences between JEE Main and JEE Advanced, how the funnel works, and which one to prepare for your target.

9 min read

JEE Main Marks vs Percentile vs Rank

Marks, percentile and rank are three different numbers. See how NTA normalization works, estimate your AIR with a simple formula, and bust the four myths that confuse JEE Main aspirants.

8 min read

JEE Main Normalization Explained: Why Your Percentile Isn't Your Marks

Your JEE Main percentile isn't a percentage of your marks. Here's the actual formula NTA uses to make every shift comparable, with a worked example.

5 min read

JEE Main Maths Trigonometry 2027: Identities, Compound Angles & Inverse Functions

Trigonometric identities, compound and multiple angle formulas, and inverse trigonometric functions with their properties, taught with worked examples.

3 min read

JEE Main Maths Statistics & Probability 2027: Standard Deviation, Bayes' Theorem & Distributions

Mean, variance and standard deviation for grouped data, addition and multiplication theorems, Bayes' theorem and the probability distribution of a random variable.

4 min read

JEE Main Maths Vector Algebra 2027: Dot Product, Cross Product & the Parallelogram Law

Vector addition, components, the scalar (dot) and vector (cross) products, taught with worked examples that connect back to geometry.

4 min read

JEE Main Maths Three Dimensional Geometry 2027: Direction Cosines, Lines & Shortest Distance

Distance and section formula in 3D, direction cosines and ratios, the equation of a line and the shortest distance between skew lines, with worked examples.

3 min read

JEE Main Maths Coordinate Geometry 2027: Straight Lines, Circles & Conic Sections

Straight line forms, angle between lines, circle equations and the standard forms of parabola, ellipse and hyperbola, taught with worked examples.

4 min read

JEE Main Maths Differential Equations 2027: Order, Degree, Separable, Homogeneous & Linear

Order and degree of a differential equation, separation of variables, homogeneous equations and the linear first-order equation with integrating factor, taught with worked examples.

4 min read

JEE Main Maths Integral Calculus 2027: Standard Integrals, Substitution & Area Under Curves

The standard integral forms listed in the NTA syllabus, integration techniques, definite integral properties and area under a curve, with worked examples.

4 min read

JEE Main Maths Limits, Continuity & Differentiability 2027: Standard Limits & Maxima-Minima

Standard limits, continuity and differentiability conditions, differentiation rules and applications of derivatives including maxima, minima and rate of change.

4 min read

JEE Main Maths Sequence & Series 2027: AP, GP, Infinite Series & AM-GM

Arithmetic and geometric progressions, inserting means between two numbers, the AM-GM relation and infinite geometric series, with worked examples.

4 min read