COMSATS Mathematics — Trigonometry
Trigonometry is part of the Mathematics section of the NTS NAT-IE test COMSATS admits on (10 of the 90 MCQs). It breaks into 2 subtopics, and we hold 28 NAT-pattern practice MCQs on it, each with a written explanation. Tap a subtopic below to practise just that.
Subtopics (2)
How Trigonometry is tested
Across the 7 NAT-pattern papers on ParhaiKrlo, Trigonometry accounts for 7 questions. It appears in all 7, about 1 questions a paper. The heaviest was COMSATS Past Paper 07, with 1 question.
| Paper | Questions |
|---|---|
| COMSATS Past Paper 07 | 1 |
| COMSATS Past Paper 06 | 1 |
| COMSATS Past Paper 05 | 1 |
| COMSATS Past Paper 04 | 1 |
| COMSATS Past Paper 03 | 1 |
| COMSATS Past Paper 02 | 1 |
| COMSATS Past Paper 01 | 1 |
Trigonometry MCQs from the NAT-pattern papers
Try each one before opening the answer. Each comes with a short explanation.
- Q1 · COMSATS Past Paper 07 · Trigonometry
Which of the following is identical to cos² θ − sin² θ?
- A.sin 2θ
- B.2 cos θ
- C.1
- D.cos 2θ
Show answer
Answer: D. cos 2θ — Double-angle formula: cos 2θ = cos² θ − sin² θ.
- Q2 · COMSATS Past Paper 06 · Trigonometry
The period of the function sin x is:
- A.π
- B.π/2
- C.4π
- D.2π
Show answer
Answer: D. 2π — sin(x + 2π) = sin x, and 2π is the smallest such value.
- Q3 · COMSATS Past Paper 05 · Trigonometry
sin(90° − θ) is equal to:
- A.tan θ
- B.sin θ
- C.−cos θ
- D.cos θ
Show answer
Answer: D. cos θ — Complementary-angle rule: sin(90° − θ) = cos θ.