Trigonometryeasy · Past Paper
If sin θ = 1, what is θ in the range 0° to 90°?
A0°
B30°
C45°
D90°
✓ Correct Answer: D — 90°
The sine function equals 1 at 90°.
Share this question
More from Trigonometry
- What is the value of tan 9° - tan 27° - tan 63° + tan 81°?
- A balloon is connected to ground by a 100 m string. If it makes 60° with ground, height is:
- If tan A = 1/7 and tan B = 1/3, then cos 2A is equal to:
- A vertical pole and a tower are on the same ground. The angle of elevation of the top of the tower from the top and bottom of the pole are 30° and 60° respectively. If tower is 90 m, pole height is:
- The expression (1 + sin 2θ + cos 2θ) / (1 + sin 2θ - cos 2θ) simplifies to: