FAST-NU Advanced Mathematics — Trigonometry
Trigonometry 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 7 subtopics, and we hold 128 FAST-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (7)
How Trigonometry is tested
Across the 7 FAST-pattern papers on ParhaiKrlo, Trigonometry accounts for 41 questions. It appears in all 7, about 5.9 questions a paper. The heaviest was FAST Past Paper 02, with 7 questions, and the most recent is FAST Past Paper 07, with 5.
| Paper | Questions |
|---|---|
| FAST Past Paper 07 | 5 |
| FAST Past Paper 06 | 5 |
| FAST Past Paper 05 | 6 |
| FAST Past Paper 04 | 6 |
| FAST Past Paper 03 | 5 |
| FAST Past Paper 02 | 7 |
| FAST Past Paper 01 | 7 |
Trigonometry MCQs from the FAST-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · FAST Past Paper 07 · Trigonometry
One radian is the angle subtended at the centre of a circle by an arc whose length is equal to:
- A.the diameter
- B.the radius
- C.half the radius
- D.the circumference
Show answer
Answer: B. the radius — By definition, an arc equal in length to the radius subtends 1 radian.
- Q2 · FAST Past Paper 06 · Trigonometry
For every angle θ, sin² θ + cos² θ is equal to:
- A.0
- B.2
- C.1
- D.sin 2θ
Show answer
Answer: C. 1 — The fundamental identity: sin² θ + cos² θ = 1.
- Q3 · FAST Past Paper 05 · Trigonometry
A wheel makes 360 revolutions per minute. Through how many radians does it turn in one second?
- A.12π
- B.6π
- C.360π
- D.720π
Show answer
Answer: A. 12π — 360 rev/min = 6 rev/s. One revolution is 2π rad, so 6 × 2π = 12π rad per second.