Trigonometrymedium · Past Paper
Calculate the value of sin(45) * cos(45).
A1
B1/2
C1/sqrt(2)
D2
✓ Correct Answer: B — 1/2
(1/sqrt(2)) * (1/sqrt(2)) = 1/2.
Share this question
More from Trigonometry
- A statue 1.6 m tall stands on a pedestal. From a point, the elevation of the top of statue is 60° and pedestal top is 45°. Find pedestal height.
- Which is equivalent to 1 / cot A?
- What is the value of sec²A - tan²A?
- From a lighthouse 100 m high, the angles of depression of two ships are 30° and 60°. If ships are on opposite sides, find distance between them.
- Simplify sin^6 A + cos^6 A + 3 sin^2 A cos^2 A.