SubArea: Space geometryLevel: BProject ID: 9000106301Accepted: 1Easy: 1Find the line k which is perpendicular to the plane α α:2x+y−z−5=0 and passes through the point A=[0;0;1].x=1−2t,y=1− t,z=1−t; t∈Rx=−2+2m,y=−1+2m,z=−1−2m; m∈Rx=−2k,y=−2k,z=−2k; k∈Rx=−2,y=−1,z=−1+u; u∈R
