FAST-NU Advanced Mathematics — Matrices and Determinants
Matrices and Determinants is part of the Advanced Mathematics section of FAST's BS CS/Engineering admission test (usually 50 of the 120 MCQs, 50% of the marks). It breaks into 4 subtopics, and we hold 77 FAST-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (4)
How Matrices and Determinants is tested
Across the 7 FAST-pattern papers on ParhaiKrlo, Matrices and Determinants accounts for 28 questions. It appears in all 7, about 4 questions a paper. The heaviest was FAST Past Paper 07, with 4 questions.
| Paper | Questions |
|---|---|
| FAST Past Paper 07 | 4 |
| FAST Past Paper 06 | 4 |
| FAST Past Paper 05 | 4 |
| FAST Past Paper 04 | 4 |
| FAST Past Paper 03 | 4 |
| FAST Past Paper 02 | 4 |
| FAST Past Paper 01 | 4 |
Matrices and Determinants MCQs from the FAST-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · FAST Past Paper 07 · Matrices and Determinants
The order of the matrix [[1, 2, 3], [4, 5, 6]] is:
- A.2 × 3
- B.3 × 2
- C.6 × 1
- D.2 × 2
Show answer
Answer: A. 2 × 3 — 2 rows and 3 columns: order 2 × 3.
- Q2 · FAST Past Paper 06 · Matrices and Determinants
If A is a 2 × 3 matrix and B is a 3 × 4 matrix, then the order of AB is:
- A.2 × 4
- B.3 × 3
- C.4 × 2
- D.AB is not defined
Show answer
Answer: A. 2 × 4 — (2 × 3)(3 × 4): the inner 3s match and the outer numbers give 2 × 4.
- Q3 · FAST Past Paper 05 · Matrices and Determinants
A square matrix A is called symmetric if:
- A.Aᵀ = −A
- B.Aᵀ = A
- C.A² = A
- D.|A| = 0
Show answer
Answer: B. Aᵀ = A — A symmetric matrix equals its own transpose.