2010016114

SubArea: 
Space geometry
Level: 
C
Project ID: 
2010016114
Source Problem: 
2010016113
Accepted: 
0
Clonable: 
1
Easy: 
0
Let a point B be the intersection point of the sphere x2+y2+z2+4x+2y−4z−8=0 and y-axis. Find the equations of all the tangent planes to the given sphere at the point B.
2x−3y−2z−12=0, 2x+3y−2z−6=0
2x+3y−2z+12=0, 2x−3y−2z+6=0
2x−3y−2z−12=0, 2x−3y−2z+6=0
2x+3y−2z+12=0, 2x+3y−2z−6=0