NUST NET Mathematics — Complex Numbers
Complex Numbers is part of the FSc Mathematics course that NUST NET-Engineering draws on (Mathematics is 100 of the 200 MCQs). It breaks into 4 subtopics, and we hold 102 NET-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (4)
How Complex Numbers is tested
Across the 8 NET-pattern papers on ParhaiKrlo, Complex Numbers accounts for 39 questions. It appears in all 8, about 4.9 questions a paper. The heaviest was NUST NET Past Paper 07, with 5 questions.
| Paper | Questions |
|---|---|
| NUST NET Past Paper 07 | 5 |
| NUST NET Past Paper 08 | 5 |
| NUST NET Past Paper 05 | 5 |
| NUST NET Past Paper 06 | 5 |
| NUST NET Past Paper 03 | 5 |
| NUST NET Past Paper 04 | 4 |
| NUST NET Past Paper 01 | 5 |
| NUST NET Past Paper 02 | 5 |
Complex Numbers MCQs from the NET-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · NUST NET Past Paper 07 · Complex Numbers
(2 + 3i)(1 − 2i) is equal to:
- A.8 − i
- B.−4 − i
- C.8 + i
- D.2 − 6i
Show answer
Answer: A. 8 − i — (2 + 3i)(1 − 2i) = 8 − i.
- Q2 · NUST NET Past Paper 08 · Complex Numbers
The value of i² + i⁴ is:
- A.0
- B.2
- C.−2
- D.2i
Show answer
Answer: A. 0 — i² = −1 and i⁴ = 1, so the sum is 0.
- Q3 · NUST NET Past Paper 05 · Complex Numbers
(3 − 2i)² is equal to:
- A.13 − 12i
- B.5 − 12i
- C.5 + 12i
- D.9 − 4i
Show answer
Answer: B. 5 − 12i — (3 − 2i)² = 9 − 12i + 4i² = 5 − 12i.