CHO A = (1; –3; 2), B = (M + 1; M – 2; 1 – M), C = (0; M – 2; 2...

Câu 5. Cho

a = (1; –3; 2),

b

= (m + 1; m – 2; 1 – m),

c = (0; m – 2; 2). Tìm m để ba vector đó đồng phẳng

A. m = 0 V m = –2

B. m = –1 V m = 2

C. m = 0 V m = –1

D. m = 2 V m = 0