The Union Public Service Commission (UPSC) is going to organize the CDS exams on 10th April 2022 and 04th September, 2022. The examination paper consists of three subjects – General Knowledge, English and Elementary Mathematics. All papers have 100 marks with a time duration of 2 hours. Firstly, you should get proper UPSC CDS Study material such as CDS exam previous year question papers, books, and topic-wise notes, etc. In this article, you will get CDS Important Topics for preparation. After going through these topics, you may crack CDS Exam easily.

## CDS Important Topics 2022

### UPSC CDS Exam Syllabus for English

- Synonyms
- Antonyms
- Para jumbles
- Reading comprehension covered in CDS Exam Syllabus
- Jumbled sentence
- Fill in the blanks
- Sentence correction
- Finding errors and omissions etc. covered in CDS Exam Syllabus

### CDS Exam Syllabus PDF of General Knowledge

- Knowledge of current topics
- knowledge of History of India and Geographical issues
- Indian Economy covered in CDS Exam Syllabus
- Current happening in the field of business, politics, sports, entertainment etc.
- Monuments of India
- Books and Authors name
- Indian Navy & Military
- Religions
- Banking Sector
- Universities covered in
**CDS Exam Syllabus** - Books & Authors covered in CDS Exam Syllabus
- Taxation
- Sports – Awards etc.

### Combined Defence Service Exam Syllabus for Elementary Mathematics

#### 1. Arithmetic

**Number System:**Natural numbers, Integers, Rational and Real numbers. Fundamental operations addition, subtraction, multiplication, division, Square roots, Decimal fractions**Unitary method:**Time and distance, time and work, percentages, applications to simple and compound interest, profit and loss, ratio and proportion, variation.**Elementary Number Theory:**Division algorithm. Prime and composite numbers. Tests of divisibility by 2, 3, 4, 5, 9 and 11. Multiples and factors. Factorization Theorem. H.C.F. and L.C.M. Euclidean algorithm, Logarithms to base 10, laws of logarithms, use of logarithmic tables.

**Click here** to download CDS Preparation Tips

**2. Algebra**

- Basic Operations
- Simple factor
- Remainder Theorem, H.C.F., L.C.M
- Theory of polynomials
- Solutions of quadratic equations
- The relation between its roots and coefficients (Only real roots to be considered)
- Simultaneous linear equations in two unknowns-analytical and graphical solutions

**3. Trigonometry**

- Sine x, cosine x, Tangent x when 0 < x < 90 degrees,
- Values of sin x, cos x and tan x, for x = 0, 30, 45, 60 and 90 degrees,
- Simple trigonometric identities,
- Use of trigonometric tables,
- Simple cases of heights and distances.

**4. Geometry**

- Lines and angles,
- Plane and plane figures,
- Theorems on (i) Properties of angles at a point (ii) Parallel lines, (iii) Sides and angles of a triangle, (iv) Congruency of triangles, (v) Similar triangles, (vi) Concurrence of medians and altitudes, (vii) Properties of angles, sides and diagonals of a parallelogram, rectangle and square (viii) Circles and its properties including tangents and normals, (ix) Loci.

**5. Mensuration**

- Areas of squares, rectangles, parallelograms, triangle and circle.
- Areas of figures which can be split up into these figures (Field Book).
- Surface area and volume of cuboids, lateral surface and volume of right circular cones.
- Cylinders, surface area and volume of spheres.

**6. Statistics**

- Collection and tabulation of statistical data
- Graphical representation frequency polygons
- Histograms, bar charts, pie charts, etc.
- Measures of central tendency

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