Multiple-angle equations Quiz
Name: ______________________ Date: __________ Score: ____ / 10
10 questions. Calculator allowed. Show your working. steplyclass.com/trigonometry/multiple-angle-equations/quiz/
1
Solve sin 2x = 12Answer: ____________________
2
Solve sin 2x = −12Answer: ____________________
3
Solve tan 2x = 1Answer: ____________________
4
Solve cos 2x = 0Answer: ____________________
5
Solve 2 cos 2x = √2Answer: ____________________
6
Solve 2 sin 2x = −√2Answer: ____________________
7
Solve tan 2x = −1Answer: ____________________
8
Solve cos 3x = −12Answer: ____________________
9
Solve cos 2x = −12 on 0 to 2πAnswer: ____________________
10
Solve sin 3x = 1Answer: ____________________
Answer key
- x = 15°, 75°, 195°, 255°
- x = 105°, 165°, 285°, 345°
- x = 22.5°, 112.5°, 202.5°, 292.5°
- x = 45°, 135°, 225°, 315°
- x = 22.5°, 157.5°, 202.5°, 337.5°
- x = 112.5°, 157.5°, 292.5°, 337.5°
- x = 67.5°, 157.5°, 247.5°, 337.5°
- x = 40°, 80°, 160°, 200°, 280°, 320°
- x = π/3, 2π/3, 4π/3, 5π/3
- x = 30°, 150°, 270°
Every answer solved step by step: steplyclass.com/trigonometry/multiple-angle-equations/quiz/answers/