Question

Answer 1

Bài 2: 

a: \(\overrightarrow{u}=\left(-2\cdot1+4\cdot3-3\cdot1;2\cdot2+4\cdot\left(-4\right)-3\cdot\left(-3\right)\right)\)

\(=\left(7;-3\right)\)

Answer 2

1a.

\(\overrightarrow{u}=\left(2;-3\right)\)

b.

\(\overrightarrow{v}=\left(-\dfrac{1}{2};0\right)\)

c.

\(\overrightarrow{w}=\left(0;\sqrt{2}\right)\)