Question

СРОЧНО!!!!!!!!!!!!! ​

Answer 1

a (-12 ; 8 ; 4)

1/4 a = ( 1/4 × (-12); 1/4 × 8; 1/4 × 4) = ( - 3 ; 2 ; 1 )

b ( - 1; 0; 2)

- 3b = (-3×(-1); -3 × 0; -3 × 2) = ( 3 ; 0 ; - 6 )

1/4 a - 3b = ( - 3 + 3 ; 2 + 0 ; 1 - 6 ) = ( 0 ; 2 ; - 5 )