The eccentricity of the ellipse x²/a² + y²/b² = 1 is
Q1. The eccentricity of the ellipse x²/a² + y²/b² = 1 is
Answer: √(1 - b²/a²)
Explanation: Eccentricity e = √(1 - b²/a²) for an ellipse, where a is the semi-major axis and b is the semi-minor axis.