Trigonometryeasy · Past Paper
Simplify: (1 - sin² θ) sec² θ.
Atan² θ
B1
Ccos² θ
D0
✓ Correct Answer: B — 1
(1 - sin² θ) = cos² θ. So, cos² θ · sec² θ = cos² θ · (1/cos² θ) = 1.
Share this question
More from Trigonometry
- Length of a shadow of a vertical tower on level ground increases by 10 m when altitude of sun changes from 45 to 30. Height?
- Find the value of sec 60°.
- If sin θ = 1/3, find the value of (2 cot²θ + 2).
- What is cos(2A) in terms of cos A?
- A ladder 20 m long leans against a wall at 60°. Distance of foot from wall?