Ada yg tau jawabannya?​

Jawab:

(0,-1,-3/2)

Penjelasan dengan langkah-langkah:

PQ = Q – P = (2,0,1)

PR = R – P = (1,1,2)

           R = (1,1,2) + P

PS = 1/2 PQ = 1/2 x (2,0,1) = (1,0,1/2)

PS = S – P = (1,0,1/2)

        S = (1,0,1/2) + P

RS = S – R

     =[(1,0,1/2) + P] – [(1,1,2) + P]

     = (1,0,1/2) – (1,1,2)

     = (0,-1,-3/2)