What is || <-7, 31, -3 > - < 4 , 4, -1 > ||?

Jan 8, 2018

The answer is $= 29.2$

Explanation:

Start by calculating

$< - 7 , 31 , - 3 > - < 4 , 4 , - 1 > = < - 11 , 27 , - 2 >$

The modulus is

$| | < - 11 , 27 , - 2 > | | = \sqrt{{\left(- 11\right)}^{2} + {\left(27\right)}^{2} + {\left(- 2\right)}^{2}}$

$= \sqrt{854}$

$= 29.2$