若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我用圆心之间的距离=两条弦
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/03 02:01:42
![若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我用圆心之间的距离=两条弦](/uploads/image/z/6934241-65-1.jpg?t=%E8%8B%A5%E5%9C%86x%26%23178%3B%2By%26%23178%3B%2B2ay-6%3D0%EF%BC%88a%EF%BC%9E0%EF%BC%89%E4%B8%8E%E5%9C%86x%26%23178%3B%2By%26%23178%3B%3D4%E7%9A%84%E5%85%AC%E5%85%B1%E5%BC%A6%E9%95%BF%E4%B8%BA2%E6%A0%B9%E5%8F%B73%2C%E5%88%99a%3D%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E6%88%91%E8%8B%A5%E5%9C%86x%26%23178%3B%2By%26%23178%3B%2B2ay-6%3D0%EF%BC%88a%EF%BC%9E0%EF%BC%89%E4%B8%8E%E5%9C%86x%26%23178%3B%2By%26%23178%3B%3D4%E7%9A%84%E5%85%AC%E5%85%B1%E5%BC%A6%E9%95%BF%E4%B8%BA2%E6%A0%B9%E5%8F%B73%2C%E5%88%99a%3D%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E6%88%91%E7%94%A8%E5%9C%86%E5%BF%83%E4%B9%8B%E9%97%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%3D%E4%B8%A4%E6%9D%A1%E5%BC%A6)
若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我用圆心之间的距离=两条弦
若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我
若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?
为什么我用圆心之间的距离=两条弦心距算不出正确答案1呐?求点拨
若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我若圆x²+y²+2ay-6=0(a>0)与圆x²+y²=4的公共弦长为2根号3,则a=?为什么我用圆心之间的距离=两条弦
还是用距离公式吧
圆心之间的距离怎会等于两弦的距离呢?