JEE Main 2019
Conic Sections
Hyperbola
Medium
Question
For the Hyperbola , which of the following remains constant when varies?
Options
Solution
Key Concept: The Standard Equation of a Hyperbola and its Features
A hyperbola centered at the origin, with its transverse axis lying along the x-axis (meaning its foci and vertices are on the x-axis), has the standard equation: Here, and are positive real numbers representing the lengths of the semi-transverse and semi-conjugate axes, respectively. From this standard form, we can define its key features:
- Semi-transverse axis (): The distance from the center to a vertex.
- Vertices: Located at $(\pm a,