Mathematics IA — Weightage Analysis
Chapter-wise marks distribution for TS Inter 1st Year Maths IA — use this to prioritise what to study first. Based on TGBIE exam patterns from the official annual plan.
Chapter-wise Marks Distribution
| Chapter | 7m LAQ | 4m SAQ | 2m SAQ | Exam Note |
|---|---|---|---|---|
| Ch. 3 Matrices | 7 ✓ | 4 ✓ | 2 ✓ | Always has a 7-mark LAQ (equation solving or inverse) |
| Ch. 4+5 Vectors | 7 ✓ | 4 ✓ | 2 ✓ | 7-mark LAQ on scalar triple product or area; SAQ on dot/cross product |
| Ch. 6 Trig Ratios & Transformations | 7 ✓ | 4 ✓ | 2 ✓ | A 7-mark LAQ almost always on transformation or multiple angles |
| Ch. 10 Properties of Triangles | 7 ✓ | 4 ✓ | — | Always a full 7-mark LAQ; sine/cosine rule with in-circle problems |
| Ch. 7 Trigonometric Equations | — | 4 ✓ | 2 ✓ | Usually a 4-mark SAQ on general solution |
| Ch. 8 Inverse Trig Functions | — | 4 ✓ | 2 ✓ | 4-mark SAQ on proving inverse trig identities |
| Ch. 9 Hyperbolic Functions | — | 4 ✓ | 2 ✓ | SAQs on definitions and addition formulas |
| Ch. 1 Functions | — | 4 ✓ | 2 ✓ | SAQ on bijection or finding inverse |
| Ch. 2 Mathematical Induction | — | 4 ✓ | 2 ✓ | 4-mark SAQ on sum/divisibility proof |
Revision Strategy Based on Weightage
The 4 chapters (Matrices, Vectors, Trigonometry, Properties of Triangles) each carry a 7-mark LAQ — securing these 4 questions alone gives 28 marks.
Add 4-mark SAQs from each chapter and you can reach 60+ marks with just 8 chapters well-prepared.
Never skip Properties of Triangles — it is consistently the highest-scoring LAQ and has predictable question patterns.
Vectors LAQ alternates between: (a) volume of parallelepiped, (b) area of triangle, (c) coplanarity — prepare all three.
Trigonometry LAQ is often a prove-type identity using multiple angle formulas — practice writing proofs step-by-step.
If short on time, focus on Ch. 3, 4+5, 6, and 10 first, then tackle shorter topics like Induction and Inverse Trig.