BA VÉC TƠ UA. U(–1; 3; 2), V(4; 5; 7), W(6; –2; 1) B. U(–...

Câu 38.

Ba véc tơ

u



A.

u



(–1; 3; 2),

v



(4; 5; 7),

w



(6; –2; 1)

B.

u



(– 4; 4; 1),

v



(2; 6; 2),

w



(3; 0; 9)

(0; 2; 4),

v



(4; 0; 5)

(1; 3; 6),

w



(3; 4; 6),

w



(–4; 2; – 6)

D.

u



( 2; –1; 3),

v



C.

u

