下列参数方程表示什么曲线?(其中https://bgk-photo.cdn.bcebos.com/6f061d950a7b0208812c128072d9f2d3562cc8ee.jpg为实参数)(1)https://bgk-photo.cdn.bcebos.com/9213b07eca8065384c3f897287dda144ac3482fd.jpg(2)https://bgk-photo.cdn.bcebos.com/96dda144ad345982f45fc8f31cf431adcaef84fd.jpg(3)https://bgk-photo.cdn.bcebos.com/d1a20cf431adcbef3de15367bcaf2edda2cc9ffd.jpg
下列参数方程表示什么曲线?(其中https://bgk-photo.cdn.bcebos.com/6f061d950a7b0208812c128072d9f2d3562cc8ee.jpg为实参数)(1)https://bgk-photo.cdn.bcebos.com/9213b07eca8065384c3f897287dda144ac3482fd.jpg(2)https://bgk-photo.cdn.bcebos.com/96dda144ad345982f45fc8f31cf431adcaef84fd.jpg(3)https://bgk-photo.cdn.bcebos.com/d1a20cf431adcbef3de15367bcaf2edda2cc9ffd.jpg
发布时间：2025-07-10 18:03:16
,因而表示直线
(2)
,因而表示椭圆
证明:因为
故由卷积定理知:证毕。
