If sec(θ)=2, what is the value of sin(θ).
Show answer & explanation
Correct answer: A
Explanation
Given:
secθ = 2
By the formula:
secθ = 1 / cosθ
sin²θ + cos²θ = 1
cosθ = 1 / 2
sin²θ + (1/2)² = 1
sin²θ + 1/4 = 1
sin²θ = 3/4
sinθ = √3 / 2
SSC CHSL - 27 Nov 2025 - Shift 3 • Quantitative Aptitude • Q62
If sec(θ)=2, what is the value of sin(θ).
Correct answer: A
Explanation
Given:
secθ = 2
By the formula:
secθ = 1 / cosθ
sin²θ + cos²θ = 1
cosθ = 1 / 2
sin²θ + (1/2)² = 1
sin²θ + 1/4 = 1
sin²θ = 3/4
sinθ = √3 / 2