Trigonometry - Identities
Maths · Grade 10 · Week 31 · 25 questions
Trigonometry connects angles and side lengths in triangles — it's the mathematics behind navigation, physics, and engineering. Mastering the basic ratios opens up a powerful set of problem-solving tools.
What you'll practise
- Calculate sine, cosine, and tangent ratios
- Solve right triangles using trigonometric ratios
- Apply trigonometric identities
- Use trigonometry in real-world problems
All 25 questions in this Trigonometry - Identities quiz
Grade 10 Maths — Trigonometry - Identities: 25 practice questions with instant scoring and explanations.
- Simplify: sin²θ + cos²θ
- Simplify: 1 + tan²θ
- Simplify: 1 + cot²θ
- Simplify: sec²θ - tan²θ
- Simplify: cosec²θ - cot²θ
- Simplify: (sinθ + cosθ)² + (sinθ - cosθ)²
- Simplify: sinθ/cosθ
- Simplify: cosθ/sinθ
- If θ = 15°, what is sin²θ + cos²θ?
- If θ = 20°, what is sin²θ + cos²θ?
- If θ = 25°, what is sin²θ + cos²θ?
- If θ = 35°, what is sin²θ + cos²θ?
- If θ = 40°, what is sin²θ + cos²θ?
- If θ = 50°, what is sin²θ + cos²θ?
- If θ = 55°, what is sin²θ + cos²θ?
- If θ = 65°, what is sin²θ + cos²θ?
- If θ = 70°, what is sin²θ + cos²θ?
- If θ = 75°, what is sin²θ + cos²θ?
- If θ = 80°, what is sin²θ + cos²θ?
- If sinθ = 3/5, what is cosθ?
- If sinθ = 5/13, what is cosθ?
- If cosθ = 8/17, what is sinθ?
- If tanθ = 3/4, what is sinθ?
- If tanθ = 5/12, what is cosθ?
- If cosθ = 7/25, what is sinθ?
Question 1 of 250 correct so far