作者stitchcca (阿迪)
看板trans_math
标题[多变] 求切面的点
时间Sun Jun 26 00:44:45 2011
Find the points on the hyperboloid x^2 + 4y^2 - z^2 = 4
where the tangent plane is parallel to the plane 2x + 2y + z = 5.
答案是 (2,1/2,-1),(-2,-1/2,1)
请问这题要怎麽求出答案
谢谢~
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