BA VÉC TƠ U (3; 0; 9) (6; –2; 1) B. U (–1; 3; 2) , V (4...

Câu 38. Ba véc tơ u

 (3; 0; 9)

 (6; –2; 1) B. u

 (–1; 3; 2) , v

 (4; 5; 7) , w

 (– 4; 4; 1) , v

 (2; 6; 2) , w

A. u

 (4; 0; 5)

 (–4; 2; – 6) D. u

 (1; 3; 6) , w

 ( 2; –1; 3) , v

 (0; 2; 4) , v

 (3; 4; 6) , w

C. u