Question

If $f=\left\{\right(4,5),(5,6),(6,-4\left)\right\}$ and $g=\left\{\right(4,-4),(6,5),(8,5\left)\right\}$.Then $|f-g|=?$

Answer 1

Given that:

$f=(4,5),(5,6),(6,-4),g=(4,-4),(6,5),(8,5)$

$f-g=(4-4,5-4),(5-6,6-5),(6-8,-4+5)$

$f-g=(0,1),(-1,1),(-2,1).$

$|f-g|=(0,1),(-1,1),(-2,1).$

Hence, this is the answer.