The equation to the circle with its center at the origin (原点) and of radius a is x^2 + y^2 = a^2.
The equation to the circle with its center at the origin (原点) and of radius a is x^2 + y^2 = a^2.
发布时间:2024-09-24 19:56:47
The equation to the circle with its center at the origin (原点) and of radius a is x^2 + y^2 = a^2.