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luongloga
2 năm trước
Cho mặt cầu (S): x2+y2+z2-2x-4y-4z=0. Mặt phẳng tiếp xúc với (S) tại điểm A(3; 4; 3) có phương trình là: A. 4x+4y-2z-17=0 B. 2x+2y+z-17=0 C. 2x+4y+z-17=0 D. x+y+z-17=0
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