Trigonometrymedium · Past Paper
The expression (1 + tan^2(A))(1 - sin^2(A)) is equal to:
A0
B1
Ctan^2(A)
Dcos^2(A)
✓ Correct Answer: B — 1
sec^2(A) * cos^2(A) = 1.
Share this question
More from Trigonometry
- In a right-angled triangle, what is the ratio of the perpendicular to the hypotenuse?
- Which of the following is equal to cos θ / sin θ?
- Evaluate: 4 sin² 60° + 3 tan² 30° - 8 sin 45° cos 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:
- Identify the correct relation: