A. ( 2,1, -1) b. ( -2,1, -1) c. ( 2,-1, -1) d. ( 2, -1, 1) e. ( -2,-1, 1) By Admin ReiPosted on December 8, 2022 A. ( 2,1, -1) b. ( -2,1, -1) c. ( 2,-1, -1) d. ( 2, -1, 1) e. ( -2,-1, 1) #MAAF KALAU SALAH #JADIKAN TERCERDAS