$9.(10$ pts$.)$ How many of the column vectors

$|$$1$

$$

$$

$1$

$1$

$1$

$$

$,|$$2$

$$

$$

$2$

$1$

$2$

$$

$,|$$3$

$$

$$

$1$

$2$

$3$

$$

$(2)$

are linearly independent? Express any dependent vectors as linear combinations of the independent

vectors.