The value of sin(2 sin⁻¹(0.8)) is:

The value of sin(2 sin⁻¹(0.8)) is:

• A. 0.96
• B. 0.48
• C. 0.64
• D. 0.8

Answer: A) 0.96

Explanation: Let sin⁻¹(0.8) = θ, so sin θ = 0.8 = 4/5. cos θ = 3/5. sin(2θ) = 2 sin θ cos θ = 2(4/5)(3/5) = 24/25 = 0.96.