The value of cos² θ sec² θ is always?
- = 1
- ≥ 2
- < 1
- None of these
Explanation
Trigonometric Identity
Given: cos^2 θ sec^2 θ
Since sec θ = 1/cosθ,
cos^2 θ sec^2 θ = cos^2 θ . 1/cos^2 θ = 1.
Trigonometric Identity
Given: cos^2 θ sec^2 θ
Since sec θ = 1/cosθ,
cos^2 θ sec^2 θ = cos^2 θ . 1/cos^2 θ = 1.
All Rights Reserved © TestPointpk.com