NDA Maths Notes

Statistics is 165 past-year NDA questions across 2017–2026 and one of the most predictable scoring chapters in NDA Mathematics.

Vectors is 102 past-year NDA questions across 2017–2026, small but high-yield.

Probability measures how likely an event is, on a scale from 0 (impossible) to 1 (certain).

Three-dimensional geometry is one of the steadiest scorers in NDA Mathematics — 94 past-year questions across 2017–2026, roughly four to five marks on every paper, with the difficulty sitting mostly in the EASY–MODERATE band.

Matrices & Determinants is the single biggest scoring chapter in NDA Mathematics — 181 past-year questions across 2017–2026, around eight or nine marks on every paper.

Sequence & Series is one of the highest-yield chapters in NDA Mathematics — 93 past-year questions across 2017–2026, four to six marks on almost every paper, sitting mostly in the EASY–MODERATE band.

Indefinite Integration is 42 NDA PYQs across 2017–2026, only 6 of them EASY, and a pure-technique chapter: there is no theory to memorise, only a toolbox of methods and the judgement to pick the right one.

Binomial Distribution is one of the most reliable scorers in the NDA Maths paper: a tight topic with 31 PYQs spanning 2017 to 2026, mostly EASY and MODERATE, and the same handful of patterns repeat year after year.

Functions is a reliable scoring chapter in NDA Mathematics — around 115 past-year questions across 2017–2026, roughly five or six marks on a typical paper, and only about one in ten is HARD.

Differentiation is a high-volume NDA chapter — around 89 past-year questions across 2017–2026, and a prerequisite for Application of Derivatives, Limits & Continuity, and much of the calculus that follows.

Trigonometric Identities is the single biggest topic in NDA Mathematics — around 145 past-year questions across 2017–2026, and the hardest by raw HARD count (47 of them).

Limits & Continuity is around 81 past-year NDA questions and the gateway to all of calculus — every derivative and integral is a limit underneath.

Application of Derivatives is around 73 past-year NDA questions and the pay-off of Differentiation: once you can differentiate, the derivative tells you slopes, rates, where a function rises or falls, and where it peaks.

Straight Lines is 104 past-year NDA questions from 2017 to 2026, about one in five rated HARD — a steady, high-volume scorer.

Permutation & Combination is around 78 past-year NDA questions and the art of counting without listing.

Complex Numbers is around 72 past-year NDA questions built on one idea: i² = −1 turns every quadratic into something solvable and puts numbers on a plane.

Sets & Relations is among the most reliable scoring chapters in NDA Maths — 75 PYQs across 2017–2026, only ~13% HARD, and built on a small number of repeatable techniques.

Definite Integration is a high-yield, rising chapter in NDA Maths — 69 PYQs across 2017–2026, ~20% HARD, and built on a small set of powerful tricks rather than brute-force antidifferentiation.

Differential Equations is a steady 67-PYQ chapter (2017–2026), ~29% HARD, built on classification plus a fixed toolkit of solving methods.

Quadratic Equations is a high-yield, high-difficulty chapter: 67 PYQs span 2017–2026 and 37% of them are HARD — the densest HARD profile of any NDA Maths topic this size.

Binomial Theorem is 56 NDA PYQs across 2017–2026, formula-heavy but tricky: once you can write the general term, most questions are a single substitution, and the marks come from picking the right value of r, not from heavy algebra.

Properties of Triangle is the toughest yield in NDA Maths — 52 PYQs, 42% of them HARD.

Conics is 40 NDA PYQs across 2017–2026, and almost every one is a matter of reading the standard form, then reading off a focus, directrix, eccentricity, or latus rectum.

Inverse Trigonometry is 36 NDA PYQs across 2017–2026, formula-heavy and unforgiving on the range.

Trigonometric Equations is 34 NDA PYQs across 2018–2026, a third of them HARD.

Circles is a compact but reliably tested chapter: 28 PYQs span 2017–2026, and the hard pockets are concentrated in the construction problems — building a circle through given points and reading off inscribed-angle facts.

Logarithms is a small but reliable scorer: 27 PYQs span 2017–2026, mostly EASY/MODERATE, with a handful of HARD that hinge on one clever identity rather than heavy algebra.

Applications of Integration is a compact, visual chapter: 27 PYQs span 2017-2026, and almost all of them ask one thing — the AREA of a region in the plane.

Height & Distance is the single hardest chapter in the NDA Maths bank — 71% of its PYQs are HARD.

Small but reliable, and nearly every question rewards the same first move: convert to decimal, do the easy arithmetic there, and convert back if the answer asks for it.