1、求常数k的值,使得平面y=kz与椭球面2x^2+y^2+4z^2=1的交线为圆.2、求平面2x-12y-z-16=0与双曲抛物面x^2-4y^2=2z的交线是两条相交直线.
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![1、求常数k的值,使得平面y=kz与椭球面2x^2+y^2+4z^2=1的交线为圆.2、求平面2x-12y-z-16=0与双曲抛物面x^2-4y^2=2z的交线是两条相交直线.](/uploads/image/z/2567488-40-8.jpg?t=1%E3%80%81%E6%B1%82%E5%B8%B8%E6%95%B0k%E7%9A%84%E5%80%BC%2C%E4%BD%BF%E5%BE%97%E5%B9%B3%E9%9D%A2y%3Dkz%E4%B8%8E%E6%A4%AD%E7%90%83%E9%9D%A22x%5E2%2By%5E2%2B4z%5E2%3D1%E7%9A%84%E4%BA%A4%E7%BA%BF%E4%B8%BA%E5%9C%86.2%E3%80%81%E6%B1%82%E5%B9%B3%E9%9D%A22x-12y-z-16%3D0%E4%B8%8E%E5%8F%8C%E6%9B%B2%E6%8A%9B%E7%89%A9%E9%9D%A2x%5E2-4y%5E2%3D2z%E7%9A%84%E4%BA%A4%E7%BA%BF%E6%98%AF%E4%B8%A4%E6%9D%A1%E7%9B%B8%E4%BA%A4%E7%9B%B4%E7%BA%BF.)
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