# Trigonometry NDA PYQ Topic Wise (2016–2026)

> Trigonometry NDA PYQs: all 321 questions from 42 official papers (2016–2026), by concept with official answers. Asked in 11 of 11 years.

Source: https://previousyearquestions.app/nda/topics/nda-trigonometry/

Explore: <a href="/nda/topics/">All NDA topics</a> · <a href="/nda/topics/mathematics/">NDA Mathematics PYQs</a> · <a href="/nda/">NDA hub</a> · <a href="/nda/syllabus-pattern/">Syllabus & pattern</a> · <a href="/nda/2026/">NDA 2026</a>

## Answer first

Trigonometry PYQs (previous year questions) for NDA: Trigonometry (Mathematics) had **321 questions** across the 42 official NDA papers we tagged (2016–2026), and appeared in 21 of them. Asked in 11 of 11 years. The concepts asked in the most papers: Trigonometric Identities, Properties of Triangles, Trigonometric Equations.

## Year-wise question count

<ChapterQuestions exam="nda" chapter="nda-trigonometry" part="trend" />

## Most-asked concepts

Sorted by the number of papers a concept appeared in.

<ChapterQuestions exam="nda" chapter="nda-trigonometry" part="concepts" />

## How to practise Trigonometry PYQs

1. Start with the concepts at the top of the table. They have come back the most.
2. Solve one year's Trigonometry questions from the official PDF against the clock, then check the answer listed below.
3. Log every miss as a concept gap, a calculation slip or a misread. Each needs a different fix.
4. Once a concept is clean in two papers, move to the next. Then sit a full paper from the year pages.

## Questions by year

Each line gives the question number and paper, type, concept, our one-line summary and the official answer, with a link to the official PDF.

<ChapterQuestions exam="nda" chapter="nda-trigonometry" part="questions" />

## Other Mathematics topics

- [Algebra PYQs](/nda/topics/algebra/)
- [Matrices and Determinants PYQs](/nda/topics/nda-matrices-determinants/)
- [Analytical Geometry (2D and 3D) PYQs](/nda/topics/analytical-geometry/)
- [Differential Calculus PYQs](/nda/topics/differential-calculus/)
- [Integral Calculus and Differential Equations PYQs](/nda/topics/integral-calculus-de/)
- [Vector Algebra PYQs](/nda/topics/nda-vector-algebra/)
- [Statistics and Probability PYQs](/nda/topics/nda-statistics-probability/)

## FAQ

### How many Trigonometry questions come in NDA?
In the official papers we tagged: 31 in 2026 (2 papers), 32 in 2025 (2 papers), 28 in 2024 (2 papers), 29 in 2023 (2 papers), 34 in 2022 (2 papers), 28 in 2021 (2 papers), 24 in 2020 (1 paper), 39 in 2019 (2 papers), 28 in 2018 (2 papers), 25 in 2017 (2 papers) and 23 in 2016 (2 papers). That is 321 questions in all, about 13% of Mathematics.

### Which Trigonometry topics repeat in NDA?
Asked in the most papers: Trigonometric Identities, Properties of Triangles, Trigonometric Equations. The concept table lists every one with its count.

### Are these official NDA questions?
Yes. Every question is from an official NDA paper hosted on our year pages. The one-line summaries are ours; open the PDF linked beside each question for the full text.