In the three dimensions the equation x² - y³ = a² represents?
- A pair of straight line
- A hyperbola
- A cylinder
- A cone
Explanation
In 3D, if z doesn’t appear in the equation, the surface is a cylinder - it extends infinitely along the z-axis.
x² - y³ = a² doesn’t have z in it, so for every (x,y) that satisfies it, z can be anything.
Last verified on 04-06-2026
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