曲线方程,概念清楚的进都是基本概念,记不清了,分别是圆(x-a)^2+(y-b)^2=r^2 (a,b)是圆心坐标,r是圆半径双曲线:x^2/a^2-y^2/b^2=1是标准方程,a代表?b代表?(x+c)^2/a^2-(y+d)^2/b^2=1有什么变化?椭圆x^2/a^2+y^2/b
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![曲线方程,概念清楚的进都是基本概念,记不清了,分别是圆(x-a)^2+(y-b)^2=r^2 (a,b)是圆心坐标,r是圆半径双曲线:x^2/a^2-y^2/b^2=1是标准方程,a代表?b代表?(x+c)^2/a^2-(y+d)^2/b^2=1有什么变化?椭圆x^2/a^2+y^2/b](/uploads/image/z/4516186-58-6.jpg?t=%E6%9B%B2%E7%BA%BF%E6%96%B9%E7%A8%8B%2C%E6%A6%82%E5%BF%B5%E6%B8%85%E6%A5%9A%E7%9A%84%E8%BF%9B%E9%83%BD%E6%98%AF%E5%9F%BA%E6%9C%AC%E6%A6%82%E5%BF%B5%2C%E8%AE%B0%E4%B8%8D%E6%B8%85%E4%BA%86%2C%E5%88%86%E5%88%AB%E6%98%AF%E5%9C%86%28x-a%29%5E2%2B%28y-b%29%5E2%3Dr%5E2+%EF%BC%88a%2Cb%29%E6%98%AF%E5%9C%86%E5%BF%83%E5%9D%90%E6%A0%87%2Cr%E6%98%AF%E5%9C%86%E5%8D%8A%E5%BE%84%E5%8F%8C%E6%9B%B2%E7%BA%BF%3Ax%5E2%2Fa%5E2-y%5E2%2Fb%5E2%3D1%E6%98%AF%E6%A0%87%E5%87%86%E6%96%B9%E7%A8%8B%2Ca%E4%BB%A3%E8%A1%A8%3Fb%E4%BB%A3%E8%A1%A8%3F%28x%2Bc%29%5E2%2Fa%5E2-%28y%2Bd%29%5E2%2Fb%5E2%3D1%E6%9C%89%E4%BB%80%E4%B9%88%E5%8F%98%E5%8C%96%3F%E6%A4%AD%E5%9C%86x%5E2%2Fa%5E2%2By%5E2%2Fb)
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