9000106303 Level: CIn the plane symmetry (reflection) defined by the plane α, α:2x+y−z−5=0, find the image A′ of the point A=[0;0;1].A′=[4;2;−1]A′=[6;3;−2]A′=[4;2;1]A′=[0;0;1]
9000106307 Level: CGiven points A=[0;0;1], B=[2;0;−1] and S=[2;1;0], find the parametric equations of the image of the line AB in a point reflection about the point S.x=−4+t,y=−2,z=−1−t; t∈Rx=2+2m,y=2+2m,z=1−2m; m∈Rx=−4+2k,y=−2+2k,z=−1−2k; k∈Rx=−2+2u,y=−2,z=−1−2u; u∈R
