Question $2$

Given the vectors $a=(2,-5,-3)$ and $b=(-4,-7,-1)$ find:

a$)$

Their lengths:

$|a|=$

Round your answer $to2$ decimal places.

$|b|=$

Round your answer $to2$ decimal places.

b$)$

The distance, $d,$ between ends of a and $b,$ assuming their common initial point is at the origin.

d

Round your answer to $2$ decimal places.