Trigonometrymedium · Past Paper
Find the value of cos 1° * cos 2° * cos 3° ... cos 90°.
A1
B0
C1/2
Dundefined
✓ Correct Answer: B — 0
Since cos 90° = 0, the entire product becomes zero.
Share this question
More from Trigonometry
- Evaluate: sin^2 30 + cos^2 30
- What is sin² 45° + cos² 45°?
- From a point on ground, the elevation of a tower is θ. After walking a distance 'a' towards it, elevation is 45°, and after 'b' more, it is 90-θ. Height is:
- Evaluate: 5 sin^2 30 + cos^2 45 - 4 tan^2 30
- A ladder 20 m long leans against a wall at 60°. Distance of foot from wall?